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.

NA

33°F

1°C

Humidity 97%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 08 Oct 01:45 AM MDT
Extended Forecast for

4 Miles NW Garrison MT

  • Overnight

    Overnight: Mostly clear, with a low around 30. East southeast wind 3 to 5 mph.

    Low: 30 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. Light and variable wind.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 32. Calm wind becoming southeast around 5 mph after midnight.

    Low: 32 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 70. East wind 5 to 8 mph.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. East northeast wind 5 to 8 mph, with gusts as high as 18 mph.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 38. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Chance Rain
    then Rain
    Likely

  • Saturday

    Saturday: Rain likely. Mostly cloudy, with a high near 56.

    High: 56 °F

    Rain Likely

  • Saturday Night

    Saturday Night: Rain likely before 3am, then rain and snow likely. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Chance Rain
    then
    Rain/Snow
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 30. East southeast wind 3 to 5 mph.
Wednesday
Sunny, with a high near 70. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 32. Calm wind becoming southeast around 5 mph after midnight.
Thursday
Sunny, with a high near 70. East wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 34. East northeast wind 5 to 8 mph, with gusts as high as 18 mph.
Friday
Sunny, with a high near 75.
Friday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 38. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain likely. Mostly cloudy, with a high near 56.
Saturday Night
Rain likely before 3am, then rain and snow likely. Mostly cloudy, with a low around 26.
Sunday
Rain and snow likely, becoming all rain after 3pm. Snow level 5200 feet. Mostly cloudy, with a high near 46.
Sunday Night
A chance of rain and snow. Snow level 5400 feet lowering to 4600 feet after midnight . Mostly cloudy, with a low around 21.
Columbus Day
A chance of rain and snow. Snow level rising to 5400 feet in the afternoon. Partly sunny, with a high near 46.
Monday Night
A slight chance of rain and snow. Snow level 5700 feet lowering to 5000 feet after midnight . Partly cloudy, with a low around 22.
Tuesday
A slight chance of rain. Snow level 5000 feet rising to 6600 feet in the afternoon. Mostly sunny, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Garrison MT
 46.57°N 112.88°W (Elev. 4625 ft)
Last Update:
2:30 pm MDT Oct 7, 2025
Forecast Valid:
2am MDT Oct 8, 2025-6pm MDT Oct 14, 2025
 
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