Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

NA

63°F

17°C

Humidity 22%
Wind Speed SE 2 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Last update 05 Apr 04:00 PM MDT
Extended Forecast for

12 Miles W Marysville MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. Blustery, with a north northeast wind 20 to 23 mph.

    Low: 28 °F

    Mostly Cloudy
    and Blustery

  • Monday

    Monday: Mostly cloudy, with a high near 45. East northeast wind 13 to 20 mph becoming west in the afternoon. Winds could gust as high as 23 mph.

    High: 45 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34. Breezy, with a southwest wind 17 to 23 mph.

    Low: 34 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Tuesday

    Tuesday: A 30 percent chance of snow after noon.  Mostly sunny, with a high near 41. Windy, with a west southwest wind 26 to 31 mph increasing to 39 to 44 mph in the afternoon. Winds could gust as high as 49 mph.  Little or no snow accumulation expected.

    High: 41 °F

    Windy. Sunny
    then Chance
    Snow

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow.  Partly cloudy, with a low around 22. Windy, with a west wind 41 to 46 mph decreasing to 28 to 33 mph after midnight. Winds could gust as high as 49 mph.

    Low: 22 °F

    Slight Chance
    Snow and
    Windy

  • Wednesday

    Wednesday: A 20 percent chance of snow before noon.  Mostly sunny, with a high near 35. Breezy.

    High: 35 °F

    Breezy.
    Slight Chance
    Snow then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of snow after noon.  Mostly sunny, with a high near 39.

    High: 39 °F

    Sunny then
    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 28. Blustery, with a north northeast wind 20 to 23 mph.
Monday
Mostly cloudy, with a high near 45. East northeast wind 13 to 20 mph becoming west in the afternoon. Winds could gust as high as 23 mph.
Monday Night
Partly cloudy, with a low around 34. Breezy, with a southwest wind 17 to 23 mph.
Tuesday
A 30 percent chance of snow after noon. Mostly sunny, with a high near 41. Windy, with a west southwest wind 26 to 31 mph increasing to 39 to 44 mph in the afternoon. Winds could gust as high as 49 mph. Little or no snow accumulation expected.
Tuesday Night
A 20 percent chance of snow. Partly cloudy, with a low around 22. Windy, with a west wind 41 to 46 mph decreasing to 28 to 33 mph after midnight. Winds could gust as high as 49 mph.
Wednesday
A 20 percent chance of snow before noon. Mostly sunny, with a high near 35. Breezy.
Wednesday Night
Partly cloudy, with a low around 22.
Thursday
A slight chance of snow after noon. Mostly sunny, with a high near 39.
Thursday Night
Mostly clear, with a low around 25.
Friday
Sunny, with a high near 47.
Friday Night
Partly cloudy, with a low around 31.
Saturday
A chance of rain and snow. Partly sunny, with a high near 46.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 27.
Sunday
Snow likely. Mostly cloudy, with a high near 34.
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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 pm MDT Apr 5, 2026
4pm MDT Apr 5, 2026-6pm MDT Apr 12, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database