Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

unknown precip

40°F

4°C

Humidity 93%
Wind Speed NW 2 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 17 Oct 07:45 PM MDT
Extended Forecast for

6 Miles NNW Garrison MT

  • Tonight

    Tonight: Rain likely, possibly mixing with snow after 11pm, then gradually ending.  Snow level 6200 feet lowering to 4800 feet after midnight . Mostly cloudy, then gradually becoming mostly clear, with a low around 26. West northwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 36 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 26 °F

    Rain/Snow
    Likely then
    Slight Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 51. West wind around 7 mph.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after midnight.  Partly cloudy, with a low around 33. West wind 5 to 13 mph becoming south after midnight.

    Low: 33 °F

    Partly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: Rain.  High near 49. South southwest wind 11 to 21 mph becoming west in the afternoon. Winds could gust as high as 32 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely before 9pm, then rain and snow likely.  Snow level 5900 feet lowering to 4900 feet after midnight . Mostly cloudy, with a low around 30. West wind 14 to 20 mph, with gusts as high as 34 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 30 °F

    Rain/Snow
    Likely

  • Monday

    Monday: A 30 percent chance of snow before noon.  Snow level rising to 5500 feet in the afternoon. Mostly sunny, with a high near 47. Little or no snow accumulation expected.

    High: 47 °F

    Chance Snow
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain likely, possibly mixing with snow after 11pm, then gradually ending. Snow level 6200 feet lowering to 4800 feet after midnight . Mostly cloudy, then gradually becoming mostly clear, with a low around 26. West northwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday
Mostly sunny, with a high near 51. West wind around 7 mph.
Saturday Night
A 30 percent chance of rain after midnight. Partly cloudy, with a low around 33. West wind 5 to 13 mph becoming south after midnight.
Sunday
Rain. High near 49. South southwest wind 11 to 21 mph becoming west in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain likely before 9pm, then rain and snow likely. Snow level 5900 feet lowering to 4900 feet after midnight . Mostly cloudy, with a low around 30. West wind 14 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday
A 30 percent chance of snow before noon. Snow level rising to 5500 feet in the afternoon. Mostly sunny, with a high near 47. Little or no snow accumulation expected.
Monday Night
Mostly clear, with a low around 25.
Tuesday
Mostly sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Mostly sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 29.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 32.
Friday
A slight chance of rain. Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Garrison MT
 46.6°N 112.85°W (Elev. 4767 ft)
2:30 pm MDT Oct 17, 2025
8pm MDT Oct 17, 2025-6pm MDT Oct 24, 2025
 
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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