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.

NA

41°F

5°C

Humidity 37%
Wind Speed WNW 5 MPH
Barometer NA
Dewpoint 16°F (-9°C)
Visibility NA
Wind Chill38°F (3°C)
Last update 17 Apr 06:45 PM MDT
Extended Forecast for

12 Miles W Marysville MT

  • Tonight

    Tonight: A 20 percent chance of snow before 8pm.  Mostly cloudy, with a low around 17. Blustery, with a west wind 17 to 22 mph, with gusts as high as 26 mph.

    Low: 17 °F

    Slight Chance
    Snow and
    Blustery then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 37. West southwest wind 18 to 20 mph, with gusts as high as 26 mph.

    High: 37 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. Southwest wind 14 to 20 mph, with gusts as high as 25 mph.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 48. Southwest wind 14 to 16 mph, with gusts as high as 23 mph.

    High: 48 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 34. Southwest wind 14 to 17 mph, with gusts as high as 22 mph.

    Low: 34 °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 36.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain.  Mostly cloudy, with a low around 39.

    Low: 39 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
A 20 percent chance of snow before 8pm. Mostly cloudy, with a low around 17. Blustery, with a west wind 17 to 22 mph, with gusts as high as 26 mph.
Saturday
Mostly sunny, with a high near 37. West southwest wind 18 to 20 mph, with gusts as high as 26 mph.
Saturday Night
Partly cloudy, with a low around 27. Southwest wind 14 to 20 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 48. Southwest wind 14 to 16 mph, with gusts as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 34. Southwest wind 14 to 17 mph, with gusts as high as 22 mph.
Monday
Mostly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 57.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 39.
Wednesday
A chance of rain before 9am, then rain and snow. Snow level 8900 feet lowering to 8200 feet in the afternoon . Mostly cloudy, with a high near 46.
Wednesday Night
Rain and snow. The snow could be heavy at times. Cloudy, with a low around 25.
Thursday
Snow. The snow could be heavy at times. Mostly cloudy, with a high near 29.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 21.
Friday
A chance of snow. Partly sunny, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles W Marysville MT
 46.77°N 112.54°W (Elev. 8199 ft)
2:00 pm MDT Apr 17, 2026
7pm MDT Apr 17, 2026-6pm MDT Apr 24, 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