Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

Lat: 46.52361°NLon: 112.80843°WElev: 4327.0ft.

unknown precip

29°F

-2°C

Humidity 90%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 17 Apr 07:45 AM MDT
Extended Forecast for

12 Miles W Marysville MT

  • Today

    Today: Snow likely.  Mostly cloudy, with a high near 25. Wind chill values as low as zero. Breezy, with a west wind 24 to 26 mph, with gusts as high as 31 mph.  Chance of precipitation is 70%. Total daytime snow accumulation of 1 to 3 inches possible.

    High: 25 °F

    Breezy.
    Chance Snow
    then Snow
    Likely

  • Tonight

    Tonight: A 20 percent chance of snow before 9pm.  Partly cloudy, with a low around 18. Blustery, with a west wind 17 to 24 mph, with gusts as high as 29 mph.

    Low: 18 °F

    Slight Chance
    Snow and
    Blustery then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 38. West southwest wind 18 to 21 mph, with gusts as high as 26 mph.

    High: 38 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26. Southwest wind 14 to 21 mph, with gusts as high as 25 mph.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 48. Southwest wind 15 to 17 mph, with gusts as high as 23 mph.

    High: 48 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain after noon.  Snow level 8600 feet rising to 9300 feet in the afternoon. Mostly sunny, with a high near 56.

    High: 56 °F

    Sunny then
    Slight Chance
    Rain

Detailed Forecast

Today
Snow likely. Mostly cloudy, with a high near 25. Wind chill values as low as zero. Breezy, with a west wind 24 to 26 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
A 20 percent chance of snow before 9pm. Partly cloudy, with a low around 18. Blustery, with a west wind 17 to 24 mph, with gusts as high as 29 mph.
Saturday
Sunny, with a high near 38. West southwest wind 18 to 21 mph, with gusts as high as 26 mph.
Saturday Night
Mostly clear, with a low around 26. Southwest wind 14 to 21 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 48. Southwest wind 15 to 17 mph, with gusts as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
A slight chance of rain after noon. Snow level 8600 feet rising to 9300 feet in the afternoon. Mostly sunny, with a high near 56.
Tuesday Night
A chance of rain, mainly after midnight. Snow level 9500 feet lowering to 8700 feet after midnight . Mostly cloudy, with a low around 38.
Wednesday
Rain and snow likely. Mostly cloudy, with a high near 47. Breezy.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 31.
Thursday
Snow likely. Mostly cloudy, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles W Marysville MT
 46.77°N 112.54°W (Elev. 8199 ft)
2:01 am MDT Apr 17, 2026
8am MDT Apr 17, 2026-6pm MDT Apr 23, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database