National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Prolonged dangerous winter storm conditions in the high country of western Montana and north-central Idaho later this week with localized damaging winds

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Hazardous Weather Conditions

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

unknown precip

25°F

-4°C

Humidity 75%
Wind Speed WNW 4 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility NA
Wind Chill20°F (-7°C)
Last update 10 Mar 12:45 AM MDT
Extended Forecast for

9 Miles NW Garrison MT

High Wind Watch March 12, 12:00am until March 13, 12:00am
Click here for hazard details and duration
High Wind Watch

  • Overnight

    Overnight: Partly cloudy, with a low around 17. Light and variable wind.

    Low: 17 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of snow between 2pm and 5pm. Partly sunny, with a high near 34. Light and variable wind becoming west 12 to 17 mph in the morning. Winds could gust as high as 28 mph. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 15. West wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 28 mph.

    Low: 15 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Snow likely, mainly after noon. Mostly cloudy, with a high near 43. West southwest wind 7 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 43 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain and snow, becoming all rain after 3am. Snow level 4400 feet rising to 5100 feet after midnight. Low around 34. West southwest wind 11 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow

  • Thursday

    Thursday: Rain before noon, then rain and snow. Snow level 5100 feet. High near 46. Breezy. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 46 °F

    Breezy. Rain
    then
    Rain/Snow

  • Thursday Night

    Thursday Night: Rain and snow. Snow level 4500 feet rising to 5100 feet after midnight. Low around 34. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow

  • Friday

    Friday: Rain and snow. Snow level 5200 feet. Cloudy, with a high near 48.

    High: 48 °F

    Rain/Snow

  • Friday Night

    Friday Night: Rain before 9pm, then rain and snow. Cloudy, with a low around 32.

    Low: 32 °F

    Rain/Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 17. Light and variable wind.
Tuesday
A 40 percent chance of snow between 2pm and 5pm. Partly sunny, with a high near 34. Light and variable wind becoming west 12 to 17 mph in the morning. Winds could gust as high as 28 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
Partly cloudy, with a low around 15. West wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 28 mph.
Wednesday
Snow likely, mainly after noon. Mostly cloudy, with a high near 43. West southwest wind 7 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow, becoming all rain after 3am. Snow level 4400 feet rising to 5100 feet after midnight. Low around 34. West southwest wind 11 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday
Rain before noon, then rain and snow. Snow level 5100 feet. High near 46. Breezy. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday Night
Rain and snow. Snow level 4500 feet rising to 5100 feet after midnight. Low around 34. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday
Rain and snow. Snow level 5200 feet. Cloudy, with a high near 48.
Friday Night
Rain before 9pm, then rain and snow. Cloudy, with a low around 32.
Saturday
Rain and snow, becoming all snow after 9am. Mostly cloudy, with a high near 40. Breezy.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 19. Blustery.
Sunday
A slight chance of snow. Mostly cloudy, with a high near 39.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 26.
Monday
A chance of rain and snow. Snow level rising to 6100 feet in the afternoon. Mostly cloudy, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NW Garrison MT
 46.61°N 112.95°W (Elev. 4216 ft)
Last Update:
12:21 am MDT Mar 10, 2026
Forecast Valid:
1am MDT Mar 10, 2026-6pm MDT Mar 16, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation