863 

FXUS65 KBYZ 291826

AFDBYZ



Area Forecast Discussion

National Weather Service Billings MT 

1226 PM MDT Mon Jun 29 2026



.KEY MESSAGES...



- Impacts from high elevation mountain snow will come to an end

  this evening as snow levels rise.



- Wind gusts today of 40-55 mph along the western foothills, and

  30-40 mph further east.



- Return to seasonable temperatures beginning Tuesday.



- Increasing thunderstorm potential Wednesday through Friday;

  strong to severe storms possible. 



&&



.DISCUSSION...



Today through Sunday...



An upper level low currently over central MT continues to bring

precipitation to western and central MT. This low is projected to

move northeast through the evening, bringing low to moderate

precipitation chances across south-central MT through the

afternoon and early evening. Isolated showers and thunderstorms

are possible early afternoon across east central MT as low CAPE

values exist there. Additionally, with the low overhead and

exiting northeast, gusty westerly winds 30-40 mph will track into

eastern MT through the overnight hours. As the low exits the 

region, heights will begin to rise, increasing snow levels. This 

will allow for snow to transition to rain as precipitation tapers 

off this evening. Into Tuesday, temperatures will begin to rebound

to the 70s and low 80s with only isolated showers expected over 

the higher terrain. Wednesday through Friday will bring about 

multiple shortwave disturbances, allowing for daily chances of 

afternoon showers and thunderstorms. None of these days show 

particularly strong forcing, but will be something to keep an eye

on for strong to severe thunderstorm potential. Into the weekend,

ensembles are in good agreement for ridging to take place, 

allowing for mild and warm conditions. Temperatures will remain

consistent through the weekend, generally in the 70s and 80s. TS





.AVIATION...



Scattered showers continue to spread from west to east this

afternoon. Look for MVFR to IFR conditions under heavier showers.

Gusty WNW winds of 25 to 40 knots will continue to spread eastward

as well, before decreasing overnight for most terminals. Look for

precipitation to end this evening as well. Expect mountain

obscurations through the period with snow showers. Matos



&&



.PRELIMINARY POINT TEMP/POPS...



    Tue     Wed     Thu     Fri     Sat     Sun     Mon     

-----------------------------------------------------------

BIL 055/079 055/081 055/083 057/082 057/079 057/086 060/090

    10/U    23/T    32/T    13/T    52/T    10/U    00/U

LVM 044/073 046/075 046/079 049/076 047/076 048/085 052/088

    43/T    35/T    52/T    16/T    62/T    10/U    01/B

HDN 054/080 053/083 054/086 055/086 055/080 054/087 058/092

    10/U    23/T    22/T    12/T    41/B    20/U    01/U

MLS 053/079 054/082 057/087 058/087 059/080 056/086 060/092

    10/N    14/T    22/T    22/T    53/W    11/U    11/U

4BQ 054/080 055/082 056/087 057/087 058/078 056/086 060/091

    00/U    34/T    12/T    22/T    42/T    21/U    11/U

BHK 049/077 051/081 053/087 055/085 055/077 052/083 056/089

    10/N    14/T    23/T    43/T    64/T    21/U    11/U

SHR 045/078 050/080 051/084 053/083 052/075 050/085 055/089

    10/U    34/T    22/T    12/T    34/T    21/U    01/U



&&



.BYZ WATCHES/WARNINGS/ADVISORIES...

MT...Winter Weather Advisory in effect until 6 PM MDT this evening

      FOR ZONE 67.

WY...None.



&&



$$

weather.gov/billings