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

Showers and Thunderstorms in the Southeast; Above Average Temperatures Expected in the West

Showers and thunderstorms will continue to produce locally heavy rainfall and isolated severe thunderstorms across the Southern Plains and Gulf Coast states through the weekend. Above average temperatures will start building over portions of the West this weekend and peak early next week. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

NA

41°F

5°C

Humidity 82%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 08 May 12:15 AM MDT
Extended Forecast for

Garrison MT

  • Overnight

    Overnight: Partly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 71. Light north wind becoming west northwest 9 to 14 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 71 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Cloudy, then gradually becoming partly cloudy, with a low around 38. West southwest wind 5 to 13 mph, with gusts as high as 25 mph.

    Low: 38 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 68. Southwest wind 5 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 68 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. Northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 22 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 36. Calm wind.
Friday
Increasing clouds, with a high near 71. Light north wind becoming west northwest 9 to 14 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Cloudy, then gradually becoming partly cloudy, with a low around 38. West southwest wind 5 to 13 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 68. Southwest wind 5 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
Mostly clear, with a low around 36. Northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 22 mph.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 76.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 39.
Thursday
Sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Garrison MT
 46.51°N 112.81°W (Elev. 4380 ft)
Last Update:
2:00 pm MDT May 7, 2026
Forecast Valid:
12am MDT May 8, 2026-6pm MDT May 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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