249 FPUS53 KLSX 291828 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 128 PM CDT Mon Jun 29 2026 ILZ100-101-MOZ061-063-064-300200- Madison IL-Saint Clair IL-Saint Charles MO-Saint Louis MO- Saint Louis City MO- Including the cities of Alton, Edwardsville, Belleville, Cahokia, Saint Charles, and Saint Louis 128 PM CDT Mon Jun 29 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Mostly sunny. Hot. Near steady temperature in the lower 90s. South winds 10 to 15 mph. Heat index values up to 110. .TONIGHT...Partly cloudy in the evening, then clearing. Humid with lows in the mid 70s. South winds 10 to 15 mph. Heat index values up to 109 early in the evening. .TUESDAY...Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 110. .TUESDAY NIGHT...Clear with lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 109 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. South winds 5 to 10 mph. Heat index values up to 109. .WEDNESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .THURSDAY AND THURSDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms. Hot. Highs in the mid 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 110. .FRIDAY...Sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 40 percent. Heat index values up to 105. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 70s. Heat index values up to 105 early in the evening. .INDEPENDENCE DAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY NIGHT...Partly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 70s. Chance of rain 30 percent. Heat index values up to 105 early in the evening. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 105. $$ MOZ042-049-050-300200- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 128 PM CDT Mon Jun 29 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Mostly sunny. Near steady temperature in the lower 90s. South winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 105. .TONIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 70s. South winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 104 early in the evening. .TUESDAY...Sunny. Highs in the mid 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 104. .TUESDAY NIGHT...Clear. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 103 early in the evening. .WEDNESDAY...Sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph. Heat index values up to 103. .WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 105. .THURSDAY NIGHT...Partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .INDEPENDENCE DAY...Mostly sunny. Highs in the mid 90s. Heat index values up to 105. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 100. $$ MOZ041-047-048-300200- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 128 PM CDT Mon Jun 29 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Mostly sunny. Highs in the mid 90s. South winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 106. .TONIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 70s. South winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 107 early in the evening. .TUESDAY...Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 25 mph. Heat index values up to 105. .TUESDAY NIGHT...Clear. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 105 in the afternoon. .WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Hot. Lows in the upper 70s. Highs in the mid 90s. Heat index values up to 105. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Hot. Lows in the upper 70s. Highs in the mid 90s. Heat index values up to 105. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening. .INDEPENDENCE DAY...Mostly sunny. Hot with highs in the mid 90s. Heat index values up to 105. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .SUNDAY...Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105 in the afternoon. $$ ILZ095>097-MOZ018-019-026-027-034>036-300200- Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Monroe MO-Ralls MO-Pike MO- Including the cities of Quincy, Mount Sterling, Pittsfield, Hannibal, and Bowling Green 128 PM CDT Mon Jun 29 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Partly sunny. Near steady temperature around 90. South winds 10 to 15 mph with gusts up to 30 mph. Heat index values up to 105. .TONIGHT...Partly cloudy. Humid with lows in the mid 70s. South winds 10 to 15 mph with gusts up to 30 mph. Heat index values up to 105 early in the evening. .TUESDAY...Sunny with highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Heat index values up to 105. .TUESDAY NIGHT...Clear. Lows in the mid 70s. South winds 10 to 15 mph, becoming southwest around 5 mph after midnight. Heat index values up to 104 early in the evening. .WEDNESDAY...Sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 103. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 100 early in the evening. .THURSDAY...Mostly sunny. Highs in the mid 90s. Heat index values up to 105. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 70s. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 70s. Heat index values up to 100 early in the evening. .INDEPENDENCE DAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 30 percent. Heat index values up to 100 early in the evening. .SUNDAY...Mostly sunny with a chance of showers and thunderstorms. Highs around 90. Chance of rain 40 percent. Heat index values up to 100. $$ ILZ069-074-300200- Clinton IL-Washington IL- 128 PM CDT Mon Jun 29 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Mostly sunny. Hot. Near steady temperature in the lower 90s. South winds 10 to 15 mph. Heat index values up to 111. .TONIGHT...Partly cloudy in the evening, then becoming mostly clear. Humid with lows in the mid 70s. South winds 10 to 15 mph. Heat index values up to 108 early in the evening. .TUESDAY...Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 112. .TUESDAY NIGHT...Clear with lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 111 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. South winds 5 to 10 mph. Heat index values up to 109. .WEDNESDAY NIGHT...Clear. Lows in the mid 70s. Heat index values up to 110 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .THURSDAY NIGHT AND FRIDAY...Mostly clear. A slight chance of showers and thunderstorms. Lows in the mid 70s. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 110. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening. .INDEPENDENCE DAY AND SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 105. $$ ILZ070-300200- Marion IL- Including the cities of Centralia and Salem 128 PM CDT Mon Jun 29 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Mostly sunny. Near steady temperature in the lower 90s. South winds around 10 mph with gusts up to 20 mph. Heat index values up to 106. .TONIGHT...Partly cloudy. Humid with lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 106 early in the evening. .TUESDAY...Sunny with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 109. .TUESDAY NIGHT...Clear with lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 107 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph. Heat index values up to 106. .WEDNESDAY NIGHT...Clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 105. .THURSDAY NIGHT...Mostly clear with a slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .FRIDAY...Sunny. A chance of showers and thunderstorms, mainly in the morning. Highs in the lower 90s. Chance of rain 30 percent. Heat index values up to 105. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 70s. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs around 90. Chance of rain 40 percent. Heat index values up to 100. $$ MOZ074-084-085-099-300200- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 128 PM CDT Mon Jun 29 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Mostly sunny. Near steady temperature in the lower 90s. South winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 105. .TONIGHT...Partly cloudy in the evening, then becoming mostly clear. Humid with lows in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 104 early in the evening. .TUESDAY...Sunny with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 106. .TUESDAY NIGHT...Clear. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 104 early in the evening. .WEDNESDAY...Sunny. Highs in the mid 90s. South winds around 5 mph. Heat index values up to 104. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 105. .FRIDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 70s. Heat index values up to 100 early in the evening. .INDEPENDENCE DAY AND SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 105. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 105. $$ MOZ060-300200- Warren MO- 128 PM CDT Mon Jun 29 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Mostly sunny. Hot. Near steady temperature in the lower 90s. South winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 108. .TONIGHT...Partly cloudy in the evening, then clearing. Humid with lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 107 early in the evening. .TUESDAY...Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 107. .TUESDAY NIGHT...Clear. Lows in the mid 70s. South winds around 5 mph. Heat index values up to 107 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph. Heat index values up to 106. .WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. .THURSDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 70s. Heat index values up to 105 early in the evening. .INDEPENDENCE DAY AND SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Hot. Highs in the mid 90s. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 105. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent. Heat index values up to 105 in the afternoon. $$ MOZ051-052-300200- Montgomery MO-Lincoln MO- 128 PM CDT Mon Jun 29 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Partly sunny. Near steady temperature in the lower 90s. South winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 108. .TONIGHT...Partly cloudy in the evening, then clearing. Humid with lows in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 107 early in the evening. .TUESDAY...Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 107. .TUESDAY NIGHT...Clear. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 106 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 106. .WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. .THURSDAY NIGHT...Partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 70s. Heat index values up to 105 early in the evening. .INDEPENDENCE DAY AND SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the mid 90s. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 105. .SUNDAY...Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105. $$ ILZ058-059-098-099-300200- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 128 PM CDT Mon Jun 29 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Partly sunny. Near steady temperature in the lower 90s. South winds 10 to 15 mph. Heat index values up to 107. .TONIGHT...Partly cloudy in the evening, then clearing. Humid with lows in the mid 70s. South winds 10 to 15 mph. Heat index values up to 107 early in the evening. .TUESDAY...Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 107. .TUESDAY NIGHT...Clear. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 107 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 106. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .THURSDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. .THURSDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 100. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 70s. Heat index values up to 100 early in the evening. .INDEPENDENCE DAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY NIGHT...Partly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 70s. Chance of rain 30 percent. Heat index values up to 105 early in the evening. .SUNDAY...Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 100. $$ ILZ060-064-065-300200- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 128 PM CDT Mon Jun 29 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Mostly sunny. Near steady temperature in the lower 90s. South winds 10 to 15 mph. Heat index values up to 107. .TONIGHT...Partly cloudy. Humid with lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 105 early in the evening. .TUESDAY...Sunny with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 109. .TUESDAY NIGHT...Clear with lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 107 early in the evening. .WEDNESDAY...Sunny with highs in the mid 90s. South winds 5 to 10 mph. Heat index values up to 107. .WEDNESDAY NIGHT...Clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .THURSDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 70s. Chance of rain 30 percent. Heat index values up to 105 early in the evening. .FRIDAY...Sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 100. .FRIDAY NIGHT AND INDEPENDENCE DAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 70s. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY NIGHT...Partly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Lows in the lower 70s. Chance of rain 30 percent. Heat index values up to 100 early in the evening. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs around 90. Chance of rain 50 percent. Heat index values up to 100. $$ ILZ079-MOZ075-300200- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 128 PM CDT Mon Jun 29 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Mostly sunny. Hot. Near steady temperature in the lower 90s. South winds 10 to 15 mph. Heat index values up to 110. .TONIGHT...Mostly clear. Humid with lows in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 108 early in the evening. .TUESDAY...Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 111. .TUESDAY NIGHT...Clear with lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. South winds 5 to 10 mph. Heat index values up to 109. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110. .FRIDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .INDEPENDENCE DAY AND SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 105. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105. $$ MOZ062-300200- Franklin MO- Including the cities of Washington, Union, and Sullivan 128 PM CDT Mon Jun 29 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Mostly sunny. Hot. Near steady temperature in the lower 90s. South winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 108. .TONIGHT...Partly cloudy in the evening, then clearing. Humid with lows in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 106 early in the evening. .TUESDAY...Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph. Heat index values up to 107. .TUESDAY NIGHT...Clear. Lows in the mid 70s. South winds around 5 mph. Heat index values up to 107 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph. Heat index values up to 106. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. .FRIDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 70s. Heat index values up to 105 early in the evening. .INDEPENDENCE DAY AND SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the mid 90s. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 105. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105. $$ MOZ059-072-073-300200- Gasconade MO-Crawford MO-Washington MO- 128 PM CDT Mon Jun 29 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Mostly sunny. Near steady temperature in the lower 90s. South winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 105. .TONIGHT...Partly cloudy in the evening, then clearing. Humid with lows in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 104 early in the evening. .TUESDAY...Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 104. .TUESDAY NIGHT...Clear. Lows in the mid 70s. South winds around 5 mph. Heat index values up to 104 early in the evening. .WEDNESDAY...Sunny. Highs in the mid 90s. Southwest winds around 5 mph. Heat index values up to 104. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. .FRIDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 70s. Heat index values up to 105 early in the evening. .INDEPENDENCE DAY AND SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the mid 90s. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 105. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105. $$ ILZ102-MOZ065-300200- Monroe IL-Jefferson MO- 128 PM CDT Mon Jun 29 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 10 PM CDT FRIDAY... .THIS AFTERNOON...Mostly sunny. Hot. Near steady temperature in the lower 90s. South winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 112. .TONIGHT...Partly cloudy in the evening, then clearing. Humid with lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 109 early in the evening. .TUESDAY...Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 109. .TUESDAY NIGHT...Clear with lows in the mid 70s. South winds around 5 mph. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. South winds around 5 mph. Heat index values up to 109. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110. .FRIDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 70s. Heat index values up to 105 early in the evening. .INDEPENDENCE DAY AND SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the mid 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 110. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105. $$