Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

NA

50°F

10°C

Humidity 78%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 27 Aug 07:45 AM MDT
Extended Forecast for

7 Miles NW Garrison MT

  • Today

    Today: A chance of showers and thunderstorms before noon, then a chance of rain between noon and 3pm, then a slight chance of thunderstorms after 3pm.  Partly sunny, with a high near 87. Light and variable wind becoming west southwest 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 40%.

    High: 87 °F

    Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 7pm.  Patchy smoke after 2am. Cloudy during the early evening, then gradual clearing, with a low around 43. East southeast wind around 6 mph becoming calm  in the evening.

    Low: 43 °F

    Slight Chance
    T-storms then
    Patchy Smoke

  • Friday

    Friday: Patchy smoke before 7am. Mostly cloudy, with a high near 82. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 82 °F

    Patchy Smoke
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44. West northwest wind around 6 mph becoming calm  in the evening.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain, then showers and possibly a thunderstorm after noon.  High near 75. Calm wind becoming west around 6 mph in the afternoon.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance Rain
    then Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 9pm, then rain after 9pm.  Low around 36. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 36 °F

    Showers

  • Sunday

    Sunday: A 50 percent chance of rain.  Partly sunny, with a high near 67. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms before noon, then a chance of rain between noon and 3pm, then a slight chance of thunderstorms after 3pm. Partly sunny, with a high near 87. Light and variable wind becoming west southwest 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Tonight
A 20 percent chance of showers and thunderstorms before 7pm. Patchy smoke after 2am. Cloudy during the early evening, then gradual clearing, with a low around 43. East southeast wind around 6 mph becoming calm in the evening.
Friday
Patchy smoke before 7am. Mostly cloudy, with a high near 82. Calm wind becoming west 5 to 7 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 44. West northwest wind around 6 mph becoming calm in the evening.
Saturday
A chance of rain, then showers and possibly a thunderstorm after noon. High near 75. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm before 9pm, then rain after 9pm. Low around 36. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A 50 percent chance of rain. Partly sunny, with a high near 67. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 38.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 78.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 38.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NW Garrison MT
 46.59°N 112.94°W (Elev. 4177 ft)
7:41 am MDT Aug 27, 2026
8am MDT Aug 27, 2026-6pm MDT Sep 2, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

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