Tracking Late Season Winter Storms

A moderate atmospheric river will continue to bring heavy snow over the Olympics, northern Cascades and northern Rockies Friday while heavy rain may bring flooding to coastal Oregon and Washington. A winter storm will continue to push across the Great Lakes and Northeast U.S. Friday and Saturday with areas of heavy snow and high winds. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

unknown precip

31°F

-1°C

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

6 Miles WNW Garrison MT

Winter Storm Warning March 13, 05:28am until March 14, 12:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning March 13, 05:28am until March 14, 12:00pm

    NOW until 12:00pm Sat

    Winter Storm Warning

  • Overnight

    Low: 30 °F

    Snow

  • Friday

    Friday: Rain, possibly mixed with snow.  Snow level 4500 feet rising to 5400 feet in the afternoon. High near 43. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 23 mph.  Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    High: 43 °F

    Rain/Snow

  • Friday Night

    Friday Night: Snow, possibly mixed with rain, becoming all snow after 5am.  Snow level 5300 feet lowering to 4400 feet after midnight . Low around 32. West northwest wind 5 to 9 mph becoming light  in the evening. Winds could gust as high as 22 mph.  Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Low: 32 °F

    Rain/Snow

  • Saturday

    Saturday: Snow.  High near 40. Breezy, with a west northwest wind 5 to 10 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 37 mph.  Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    High: 40 °F

    Snow and
    Breezy

  • Saturday Night

    Saturday Night: Snow, mainly before midnight.  Low around 10. West northwest wind 13 to 18 mph becoming light northwest  after midnight. Winds could gust as high as 36 mph.  Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 10 °F

    Snow then
    Chance Snow

  • Sunday

    Sunday: A 20 percent chance of snow after noon.  Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 40 percent chance of snow.  Mostly cloudy, with a low around 21. Little or no snow accumulation expected.

    Low: 21 °F

    Chance Snow

  • Monday

    Monday: A chance of snow before 9am, then a chance of rain and snow between 9am and noon, then a chance of rain after noon.  Snow level rising to 7400 feet in the afternoon. Cloudy, with a high near 48.

    High: 48 °F

    Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

Overnight
Snow. Low around 30. West wind around 5 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 2 inches possible.
Friday
Rain, possibly mixed with snow. Snow level 4500 feet rising to 5400 feet in the afternoon. High near 43. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Friday Night
Snow, possibly mixed with rain, becoming all snow after 5am. Snow level 5300 feet lowering to 4400 feet after midnight . Low around 32. West northwest wind 5 to 9 mph becoming light in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Saturday
Snow. High near 40. Breezy, with a west northwest wind 5 to 10 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Saturday Night
Snow, mainly before midnight. Low around 10. West northwest wind 13 to 18 mph becoming light northwest after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Sunday
A 20 percent chance of snow after noon. Partly sunny, with a high near 35.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 21. Little or no snow accumulation expected.
Monday
A chance of snow before 9am, then a chance of rain and snow between 9am and noon, then a chance of rain after noon. Snow level rising to 7400 feet in the afternoon. Cloudy, with a high near 48.
Monday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 37.
Tuesday
Partly sunny, with a high near 56.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
Mostly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WNW Garrison MT
 46.55°N 112.94°W (Elev. 4449 ft)
2:01 am MDT Mar 13, 2026
5am MDT Mar 13, 2026-6pm MDT Mar 19, 2026
 
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Additional Resources

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