Critical Fire Weather in the Plains; Unseasonably Warm in the Southwest and Southern U.S.

Unseasonably warm temperatures continue through the weekend across the Southwest and southern U.S., with more than 100 record or near record maximum temperatures forecast through the rest of the week and over the weekend. Elevated to critical fire weather conditions will persist across the Plains and Southeast U.S. this weekend. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

NA

40°F

4°C

Humidity 59%
Wind Speed SE 2 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 29 Mar 09:00 AM MDT
Extended Forecast for

12 Miles W Marysville MT

  • Today

    Today: A 20 percent chance of snow after 4pm.  Increasing clouds, with a high near 39. Breezy, with a west southwest wind 20 to 26 mph, with gusts as high as 44 mph.

    High: 39 °F

    Breezy. Sunny
    then Slight
    Chance Snow

  • Tonight

    Tonight: Snow likely, mainly after 8pm. The snow could be heavy at times.  Mostly cloudy, with a low around 20. Breezy, with a west wind 22 to 26 mph, with gusts as high as 44 mph.  Chance of precipitation is 60%. New snow accumulation of 3 to 5 inches possible.

    Low: 20 °F

    Heavy Snow
    and Breezy

  • Monday

    Monday: Snow likely, mainly before noon.  Mostly cloudy, with a high near 24. Wind chill values as low as -1. Windy, with a west wind 28 to 33 mph increasing to 34 to 39 mph in the afternoon. Winds could gust as high as 65 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 24 °F

    Windy. Snow
    Likely then
    Chance Snow

  • Monday Night

    Monday Night: A 20 percent chance of snow before midnight.  Partly cloudy, with a low around 13. Wind chill values as low as -2. Windy, with a west wind 26 to 36 mph decreasing to 14 to 24 mph after midnight. Winds could gust as high as 60 mph.

    Low: 13 °F

    Slight Chance
    Snow and
    Windy then
    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 32. South southeast wind 13 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.

    High: 32 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of snow after noon.  Partly sunny, with a high near 39. Little or no snow accumulation expected.

    High: 39 °F

    Mostly Sunny
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: Snow.  Cloudy, with a low around 26.

    Low: 26 °F

    Snow

  • Thursday

    Thursday: Snow.  Cloudy, with a high near 28. Breezy.

    High: 28 °F

    Snow and
    Breezy

Detailed Forecast

Today
A 20 percent chance of snow after 4pm. Increasing clouds, with a high near 39. Breezy, with a west southwest wind 20 to 26 mph, with gusts as high as 44 mph.
Tonight
Snow likely, mainly after 8pm. The snow could be heavy at times. Mostly cloudy, with a low around 20. Breezy, with a west wind 22 to 26 mph, with gusts as high as 44 mph. Chance of precipitation is 60%. New snow accumulation of 3 to 5 inches possible.
Monday
Snow likely, mainly before noon. Mostly cloudy, with a high near 24. Wind chill values as low as -1. Windy, with a west wind 28 to 33 mph increasing to 34 to 39 mph in the afternoon. Winds could gust as high as 65 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Monday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around 13. Wind chill values as low as -2. Windy, with a west wind 26 to 36 mph decreasing to 14 to 24 mph after midnight. Winds could gust as high as 60 mph.
Tuesday
Mostly sunny, with a high near 32. South southeast wind 13 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
A 40 percent chance of snow after noon. Partly sunny, with a high near 39. Little or no snow accumulation expected.
Wednesday Night
Snow. Cloudy, with a low around 26.
Thursday
Snow. Cloudy, with a high near 28. Breezy.
Thursday Night
A chance of snow before 7pm. Mostly cloudy, with a low around 19. Breezy.
Friday
Mostly cloudy, with a high near 27. Breezy.
Friday Night
Mostly cloudy, with a low around 19. Breezy.
Saturday
Partly sunny, with a high near 33.
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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 am MDT Mar 29, 2026
9am MDT Mar 29, 2026-6pm MDT Apr 4, 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