FPUS65 KTFX 202139
AFPTFX

Central and Southwest Montana Area Forecast
National Weather Service Great Falls MT
338 PM MDT Mon Apr 20 2026

MTZ301>314-316>318-211200-
Central Montana-
National Weather Service Great Falls MT
338 PM MDT Mon Apr 20 2026

...WINTER STORM WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY AFTERNOON FOR Judith Basin County and Judith
Gap...Fergus County below 4500ft...Snowy and Judith Mountains...
...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH
THURSDAY AFTERNOON FOR Little Belt and Highwood Mountains...

.TONIGHT...Mostly cloudy in the evening then clearing. Lows 40 to
45.
.TUESDAY...Partly cloudy. Highs 75 to 80...65 to 75 in the
mountains.
.TUESDAY NIGHT...Mostly cloudy. Lows 45 to 50.
.WEDNESDAY...Mostly cloudy. Rain showers and slight chance of
thunderstorms. Highs 65 to 75. West winds around 20 mph with
gusts to 40 mph.
.THURSDAY...Much colder. Rain and chance of snow. Lows 30 to 35.
Highs 35 to 45.
.FRIDAY...Mostly cloudy. Chance of snow. Lows 20 to 25. Highs
35 to 45.
.SATURDAY...Mostly cloudy. Slight chance of snow. Lows 20 to 25.
Highs 35 to 45.

$$

MTZ315-319>330-211200-
Southwest Montana-
National Weather Service Great Falls MT
338 PM MDT Mon Apr 20 2026

...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH
THURSDAY AFTERNOON FOR Big Belt, Bridger and Castle
Mountains...Gallatin and Madison County Mountains and Centennial
Mountains...

.TONIGHT...Partly cloudy. Lows 35 to 45.
.TUESDAY...Partly cloudy. Highs 70 to 80...60 to 70 in the
mountains. South winds 20 to 25 mph with gusts to 40 mph in the
afternoon.
.TUESDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. Lows 40 to 50...35 to 45 in the mountains. Gusts
up to 40 mph in the evening.
.WEDNESDAY...Mostly cloudy. Rain, snow and slight chance of
thunderstorms. Highs 50 to 60. Southwest winds 20 to 25 mph with
gusts to 45 mph.
.THURSDAY...Colder, snow. Lows 30 to 35. Highs 35 to 45.
.FRIDAY...Mostly cloudy. Chance of snow. Lows 20 to 25. Highs
30 to 40.
.SATURDAY...Partly cloudy. Slight chance of snow. Lows 15 to 20.
Highs 35 to 45.

$$