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

Garrison I-90 MP 174.4 (MTGAR)

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

unknown precip

30°F

-1°C

Humidity 85%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 06 Mar 01:45 AM MST
Extended Forecast for

9 Miles NW Garrison MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 26. West northwest wind around 6 mph.

    Low: 26 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of snow after 4pm. Mostly sunny, with a high near 43. West wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 43 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: A slight chance of snow between 1am and 3am. Mostly cloudy, with a low around 29. West northwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: A chance of snow before 8am, then a chance of rain and snow between 8am and 11am, then a chance of rain after 11am. Snow level rising to 6900 feet in the afternoon. Mostly cloudy, with a high near 50. West wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 50 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 37. West southwest wind 9 to 15 mph, with gusts as high as 28 mph.

    Low: 37 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain after 11am. Mostly sunny, with a high near 54. Windy.

    High: 54 °F

    Chance Rain
    and Windy

  • Sunday Night

    Sunday Night: A chance of rain before 11pm, then a chance of rain and snow. Snow level 6600 feet lowering to 4800 feet after midnight . Mostly cloudy, with a low around 32. Breezy. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 32 °F

    Chance
    Rain/Snow and
    Breezy

  • Monday

    Monday: A chance of snow. Partly sunny, with a high near 44. Breezy.

    High: 44 °F

    Chance Snow
    and Breezy

  • Monday Night

    Monday Night: A chance of snow, mainly after 11pm. Mostly cloudy, with a low around 19. Breezy.

    Low: 19 °F

    Chance Snow
    and Breezy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 26. West northwest wind around 6 mph.
Friday
A 20 percent chance of snow after 4pm. Mostly sunny, with a high near 43. West wind 6 to 14 mph, with gusts as high as 24 mph.
Friday Night
A slight chance of snow between 1am and 3am. Mostly cloudy, with a low around 29. West northwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Saturday
A chance of snow before 8am, then a chance of rain and snow between 8am and 11am, then a chance of rain after 11am. Snow level rising to 6900 feet in the afternoon. Mostly cloudy, with a high near 50. West wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 37. West southwest wind 9 to 15 mph, with gusts as high as 28 mph.
Sunday
A 30 percent chance of rain after 11am. Mostly sunny, with a high near 54. Windy.
Sunday Night
A chance of rain before 11pm, then a chance of rain and snow. Snow level 6600 feet lowering to 4800 feet after midnight . Mostly cloudy, with a low around 32. Breezy. Chance of precipitation is 50%. Little or no snow accumulation expected.
Monday
A chance of snow. Partly sunny, with a high near 44. Breezy.
Monday Night
A chance of snow, mainly after 11pm. Mostly cloudy, with a low around 19. Breezy.
Tuesday
A chance of snow. Partly sunny, with a high near 37.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 19.
Wednesday
A chance of snow. Partly sunny, with a high near 45.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 27.
Thursday
A chance of rain and snow. Partly sunny, with a high near 47. Breezy.
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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:
1:11 am MST Mar 6, 2026
Forecast Valid:
2am MST Mar 6, 2026-6pm MDT Mar 12, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation