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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

NA

27°F

-3°C

Humidity NA
Wind Speed E 2 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

10 Miles SW Garrison MT

  • Today

    Today: Mostly sunny, with a high near 57. West southwest wind 7 to 16 mph, with gusts as high as 24 mph.

    High: 57 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. West wind 5 to 8 mph becoming calm after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 51. Calm wind.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 57. South wind 5 to 7 mph.

    High: 57 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain before midnight. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 57. West southwest wind 7 to 16 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, with a low around 36. West wind 5 to 8 mph becoming calm after midnight.
Sunday
Mostly sunny, with a high near 51. Calm wind.
Sunday Night
Mostly clear, with a low around 38. Calm wind becoming south 5 to 7 mph after midnight.
Monday
Mostly sunny, with a high near 57. South wind 5 to 7 mph.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
Partly sunny, with a high near 51.
Tuesday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
A chance of rain. Partly sunny, with a high near 51.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 35.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SW Garrison MT
 46.42°N 112.94°W (Elev. 6814 ft)
Last Update:
2:01 am MDT Oct 17, 2026
Forecast Valid:
7am MDT Oct 17, 2026-6pm MDT Oct 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation