Severe Weather and Heavy Rainfall in the Ohio Valley; Heat Continuing in the South and Southeast

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians tonight. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

NA

61°F

16°C

Humidity 33%
Wind Speed SSE 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 11 Aug 11:30 PM MDT
Extended Forecast for

9 Miles NNW Garrison MT

  • Tonight

    Tonight: Patchy smoke. Partly cloudy, with a low around 53. Northwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 53 °F

    Patchy Smoke

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 3pm.  Patchy smoke. Sunny, with a high near 74. Calm wind becoming east northeast 5 to 7 mph in the afternoon.

    High: 74 °F

    Patchy Smoke
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of rain and thunderstorms before 2am, then a slight chance of rain between 2am and 3am.  Patchy smoke before 7pm. Mostly cloudy, with a low around 51. East northeast wind 7 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 40%.

    Low: 51 °F

    Chance Rain

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 67. East northeast wind 5 to 7 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Partly Sunny
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 9pm, then rain, mainly between 9pm and midnight.  Low around 50. East northeast wind 3 to 5 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers then
    Chance Rain

  • Friday

    Friday: A chance of rain, then showers and possibly a thunderstorm after noon.  High near 65. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Chance Rain
    then Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight.  Mostly cloudy, with a low around 48. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 48 °F

    Chance
    T-storms then
    Slight Chance
    Rain

  • Saturday

    Saturday: A chance of showers and thunderstorms after noon.  Partly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Patchy smoke. Partly cloudy, with a low around 53. Northwest wind 5 to 7 mph becoming calm after midnight.
Wednesday
A 20 percent chance of showers and thunderstorms after 3pm. Patchy smoke. Sunny, with a high near 74. Calm wind becoming east northeast 5 to 7 mph in the afternoon.
Wednesday Night
A chance of rain and thunderstorms before 2am, then a slight chance of rain between 2am and 3am. Patchy smoke before 7pm. Mostly cloudy, with a low around 51. East northeast wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Thursday
Showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 67. East northeast wind 5 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm before 9pm, then rain, mainly between 9pm and midnight. Low around 50. East northeast wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of rain, then showers and possibly a thunderstorm after noon. High near 65. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight. Mostly cloudy, with a low around 48. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 69.
Saturday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50.
Sunday
Sunny, with a high near 73.
Sunday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 74.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Garrison MT
 46.66°N 112.86°W (Elev. 5502 ft)
2:01 pm MDT Aug 11, 2026
11pm MDT Aug 11, 2026-6pm MDT Aug 18, 2026
 
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Additional Resources

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