Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

NA

33°F

1°C

Humidity NA
Wind Speed E 0 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

12 Miles W Marysville MT

  • Today

    Today: Snow showers, mainly after 2pm. Some thunder is also possible.  High near 40. Southwest wind 10 to 16 mph becoming east in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 40 °F

    Slight Chance
    Snow Showers
    then Snow
    Showers

  • Tonight

    Tonight: Snow showers. Some thunder is also possible.  Low around 28. East southeast wind 15 to 17 mph becoming west in the evening. Winds could gust as high as 21 mph.  Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 28 °F

    Snow Showers

  • Monday

    Monday: Snow showers.  High near 33. Breezy, with a west southwest wind 17 to 23 mph, with gusts as high as 29 mph.  Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 33 °F

    Snow Showers
    and Breezy

  • Monday Night

    Monday Night: A 40 percent chance of snow showers before midnight.  Mostly cloudy, with a low around 28. Breezy, with a west wind around 26 mph, with gusts as high as 31 mph.  New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Breezy.
    Chance Snow
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow showers.  Mostly cloudy, with a high near 35. Windy, with a west southwest wind 25 to 31 mph, with gusts as high as 37 mph.

    High: 35 °F

    Slight Chance
    Snow Showers
    and Windy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow showers after midnight.  Mostly cloudy, with a low around 28. Windy.  New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Mostly Cloudy
    and Windy
    then Chance
    Snow Showers
    and Breezy

  • Wednesday

    Wednesday: Snow showers.  High near 32. Breezy.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 32 °F

    Snow Showers
    and Breezy

  • Wednesday Night

    Wednesday Night: Snow.  Mostly cloudy, with a low around 19. Breezy.

    Low: 19 °F

    Snow and
    Breezy

  • Thursday

    Thursday: Snow.  Cloudy, with a high near 22. Breezy.

    High: 22 °F

    Snow and
    Breezy

Detailed Forecast

Today
Snow showers, mainly after 2pm. Some thunder is also possible. High near 40. Southwest wind 10 to 16 mph becoming east in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tonight
Snow showers. Some thunder is also possible. Low around 28. East southeast wind 15 to 17 mph becoming west in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Monday
Snow showers. High near 33. Breezy, with a west southwest wind 17 to 23 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Monday Night
A 40 percent chance of snow showers before midnight. Mostly cloudy, with a low around 28. Breezy, with a west wind around 26 mph, with gusts as high as 31 mph. New snow accumulation of less than a half inch possible.
Tuesday
A 20 percent chance of snow showers. Mostly cloudy, with a high near 35. Windy, with a west southwest wind 25 to 31 mph, with gusts as high as 37 mph.
Tuesday Night
A 40 percent chance of snow showers after midnight. Mostly cloudy, with a low around 28. Windy. New snow accumulation of less than a half inch possible.
Wednesday
Snow showers. High near 32. Breezy. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow. Mostly cloudy, with a low around 19. Breezy.
Thursday
Snow. Cloudy, with a high near 22. Breezy.
Thursday Night
A chance of snow, mainly before midnight. Mostly cloudy, with a low around 16.
Friday
Snow likely. Partly sunny, with a high near 28. Breezy.
Friday Night
A slight chance of snow. Partly cloudy, with a low around 19.
Saturday
A chance of snow. Partly sunny, with a high near 34. Breezy.
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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 12, 2026
7am MDT Apr 12, 2026-6pm MDT Apr 18, 2026
 
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Additional Resources

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