Area Forecast Product
Issued by NWS Great Falls, MT

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FPUS65 KTFX 121809
AFPTFX

Central and Southwest Montana Area Forecast
National Weather Service Great Falls MT
1208 PM MDT Tue May 12 2026

MTZ301>314-316>318-130000-
Central Montana-
National Weather Service Great Falls MT
1208 PM MDT Tue May 12 2026

...HIGH WIND WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY EVENING FOR East Glacier Park Region...Northern High
Plains...Eastern Glacier, Western Toole, and Central
Pondera...Hill County...Northern Blaine County...Southern Rocky
Mountain Front...Southern High Plains...Western and Central
Chouteau County...Bears Paw Mountains and Southern
Blaine...Fergus County below 4500ft...Snowy and Judith
Mountains...
...HIGH WIND WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY AFTERNOON FOR Eastern Toole and Liberty...Cascade County
below 5000ft...Judith Basin County and Judith Gap...

.REST OF TODAY...Sunny. Highs 75 to 80...60 to 70 in the
mountains.
.TONIGHT...Partly cloudy. Lows 45 to 50.
.WEDNESDAY...Increasing clouds. Chance of rain showers and slight
chance of thunderstorms in the afternoon and evening. Some
thunderstorms may be severe. Highs 80 to 90...65 to 75 in the
mountains. Southwest winds 20 to 30 mph with gusts to 55 mph in
the afternoon and evening.
.THURSDAY...Partly cloudy. Cooler. Chance of rain showers. Lows
40 to 50. Highs 60 to 70.
.FRIDAY...Mostly clear. Lows 35 to 45. Highs 60 to 70.
.SATURDAY...Mostly cloudy. Slight chance of rain. Lows 35 to 45.
Highs 50 to 60.

$$

MTZ315-319>330-130000-
Southwest Montana-
National Weather Service Great Falls MT
1208 PM MDT Tue May 12 2026

...HIGH WIND WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY EVENING FOR Upper Blackfoot and MacDonald Pass...
...HIGH WIND WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY AFTERNOON FOR Helena Valley...

.REST OF TODAY...Sunny. Highs 75 to 85...65 to 75 in the
mountains.
.TONIGHT...Partly cloudy. Slight chance of rain showers. Lows
45 to 50.
.WEDNESDAY...Increasing clouds. Chance of rain showers and slight
chance of thunderstorms in the afternoon and evening. Some
thunderstorms may be severe in the afternoon and evening. Highs
80 to 90...65 to 75 in the mountains. Southwest winds 20 to
30 mph with gusts to 55 mph in the afternoon and evening.
.THURSDAY...Mostly clear. Cooler. Lows 35 to 40. Highs 55 to 65.
.FRIDAY...Mostly clear. Lows 35 to 40. Highs 55 to 65.
.SATURDAY...Mostly cloudy. Slight chance of snow. Lows 35 to 40.
Highs 50 to 60.

$$