Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

NA

72°F

22°C

Humidity 32%
Wind Speed NNW 4 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 17 Aug 09:30 PM MDT
Extended Forecast for

8 Miles WNW Elliston MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 79. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 79 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45. West wind 5 to 7 mph becoming calm  in the evening. Winds could gust as high as 18 mph.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 82. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. West northwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Friday Night

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

    Low: 50 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 47. Calm wind.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 45. West wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Wednesday
Sunny, with a high near 82. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 47. West northwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 47.
Friday
Mostly sunny, with a high near 87.
Friday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50.
Saturday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 83.
Saturday Night
A chance of rain. Partly cloudy, with a low around 47.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 45.
Monday
Sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WNW Elliston MT
 46.6°N 112.6°W (Elev. 4800 ft)
2:01 pm MDT Aug 17, 2026
9pm MDT Aug 17, 2026-6pm MDT Aug 24, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database