060 FPUS52 KKEY 282057 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 357 PM EST Sat Feb 28 2026 FLZ076>078-010900- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 357 PM EST Sat Feb 28 2026 .TONIGHT...Becoming mostly cloudy with a slight chance of showers. Patchy fog. Lows in the upper 60s to near 70. Variable winds near 5 mph, becoming north. Chance of rain 10 percent. .SUNDAY...Partly sunny with a slight chance of showers. Highs in the upper 70s. Northeast winds 5 to 10 mph. Chance of rain 10 percent. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers. Lows near 70. Northeast winds increasing to 10 to 15 mph. Chance of rain 20 percent. .MONDAY...Mostly sunny with a slight chance of showers. Highs near 80. Northeast winds 10 to 15 mph. Chance of rain 10 percent. .MONDAY NIGHT...Mostly clear with a slight chance of showers. Lows near 70. Northeast winds near 15 mph. Chance of rain 10 percent. .TUESDAY...Mostly sunny with a slight chance of showers. Highs near 80. Chance of rain 10 percent. .TUESDAY NIGHT...Partly cloudy with a slight chance of showers. Lows in the lower 70s. Chance of rain 20 percent. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear with a slight chance of showers. Highs near 80. Lows in the lower 70s. Chance of rain 20 percent. .THURSDAY...Mostly sunny with a slight chance of showers. Highs near 80. Chance of rain 10 percent. .THURSDAY NIGHT...Partly cloudy with a slight chance of showers. Lows in the lower 70s. Chance of rain 20 percent. .FRIDAY...Partly sunny with a slight chance of showers. Highs near 80. Chance of rain 10 percent. .FRIDAY NIGHT...Mostly cloudy with a slight chance of showers. Lows in the lower 70s. Chance of rain 20 percent. .SATURDAY...Partly sunny in the morning, then becoming sunny. A slight chance of showers. Highs in the upper 70s. Chance of rain 10 percent. $$