Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

unknown precip

37°F

3°C

Humidity 100%
Wind Speed NW 5 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Wind Chill33°F (1°C)
Last update 17 Oct 10:00 PM MDT
Extended Forecast for

12 Miles W Marysville MT

  • Tonight

    Tonight: A slight chance of snow between midnight and 1am.  Mostly cloudy, with a low around 23. Blustery, with a west northwest wind 20 to 25 mph, with gusts as high as 33 mph.  Chance of precipitation is 20%.

    Low: 23 °F

    Blustery.
    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 33. West southwest wind 11 to 18 mph, with gusts as high as 23 mph.

    High: 33 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after midnight.  Partly cloudy, with a low around 30. Breezy, with a southwest wind 10 to 15 mph increasing to 24 to 29 mph after midnight. Winds could gust as high as 40 mph.  Little or no snow accumulation expected.

    Low: 30 °F

    Breezy.
    Partly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow.  High near 36. Breezy, with a southwest wind 23 to 29 mph, with gusts as high as 40 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 36 °F

    Snow and
    Breezy

  • Sunday Night

    Sunday Night: Snow likely.  Mostly cloudy, with a low around 27. Windy, with a west southwest wind 26 to 31 mph, with gusts as high as 44 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 27 °F

    Snow Likely
    and Windy

  • Monday

    Monday: A 40 percent chance of snow, mainly before noon.  Partly sunny, with a high near 29. Windy.  New snow accumulation of less than a half inch possible.

    High: 29 °F

    Chance Snow
    and Windy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of snow between midnight and 1am. Mostly cloudy, with a low around 23. Blustery, with a west northwest wind 20 to 25 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 33. West southwest wind 11 to 18 mph, with gusts as high as 23 mph.
Saturday Night
A 30 percent chance of snow after midnight. Partly cloudy, with a low around 30. Breezy, with a southwest wind 10 to 15 mph increasing to 24 to 29 mph after midnight. Winds could gust as high as 40 mph. Little or no snow accumulation expected.
Sunday
Snow. High near 36. Breezy, with a southwest wind 23 to 29 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
Snow likely. Mostly cloudy, with a low around 27. Windy, with a west southwest wind 26 to 31 mph, with gusts as high as 44 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Monday
A 40 percent chance of snow, mainly before noon. Partly sunny, with a high near 29. Windy. New snow accumulation of less than a half inch possible.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 38.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Mostly sunny, with a high near 37.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Partly sunny, with a high near 45.
Thursday Night
Partly cloudy, with a low around 35.
Friday
A slight chance of rain and snow. Mostly sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles W Marysville MT
 46.77°N 112.54°W (Elev. 8199 ft)
2:30 pm MDT Oct 17, 2025
10pm MDT Oct 17, 2025-6pm MDT Oct 24, 2025
 
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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