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

37°F

3°C

Humidity 71%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 18 Oct 03:00 AM MDT
Extended Forecast for

9 Miles NW Garrison MT

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Patchy Fog

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 62. Calm wind.

    High: 62 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31. Calm wind becoming east around 5 mph after midnight.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 69. East southeast wind around 6 mph becoming calm in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34. Calm wind becoming southeast around 5 mph.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 33. Calm wind.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 62. Calm wind.
Sunday Night
Mostly clear, with a low around 31. Calm wind becoming east around 5 mph after midnight.
Monday
Mostly sunny, with a high near 69. East southeast wind around 6 mph becoming calm in the afternoon.
Monday Night
Partly cloudy, with a low around 34. Calm wind becoming southeast around 5 mph.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
A chance of rain after noon. Mostly sunny, with a high near 66.
Thursday Night
Rain. Mostly cloudy, with a low around 36.
Friday
Rain likely. Mostly cloudy, with a high near 49.
Friday Night
A chance of rain. Snow level 6600 feet lowering to 5100 feet after midnight . Mostly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NW Garrison MT
 46.61°N 112.95°W (Elev. 4216 ft)
Last Update:
2:01 am MDT Oct 18, 2026
Forecast Valid:
3am MDT Oct 18, 2026-6pm MDT Oct 24, 2026
 
Forecast Discussion
 
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Additional Resources

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