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

BRENNER (BRRM8)

Lat: 44.93656°NLon: 113.25239°WElev: 6631.0ft.

NA

56°F

13°C

Humidity 66%
Wind Speed ESE 9 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 18 Aug 01:47 AM MDT
Extended Forecast for

8 Miles W Grant MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 49. South southwest wind around 5 mph.

    Low: 49 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 80. Light south southwest wind becoming west 9 to 14 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46. West northwest wind 5 to 11 mph becoming east northeast in the evening. Winds could gust as high as 22 mph.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 83. Light west southwest wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 21 mph.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48. West wind 5 to 10 mph becoming light southwest  after midnight.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 88. Calm wind becoming west 5 to 9 mph in the afternoon.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 53. West wind 5 to 9 mph becoming calm  after midnight.

    Low: 53 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 88. Calm wind becoming south southeast 5 to 9 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 49. South southwest wind around 5 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Light south southwest wind becoming west 9 to 14 mph in the afternoon. Winds could gust as high as 23 mph.
Tuesday Night
Partly cloudy, with a low around 46. West northwest wind 5 to 11 mph becoming east northeast in the evening. Winds could gust as high as 22 mph.
Wednesday
Sunny, with a high near 83. Light west southwest wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 48. West wind 5 to 10 mph becoming light southwest after midnight.
Thursday
Sunny, with a high near 88. Calm wind becoming west 5 to 9 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 53. West wind 5 to 9 mph becoming calm after midnight.
Friday
Mostly sunny, with a high near 88. Calm wind becoming south southeast 5 to 9 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53.
Saturday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 84.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 48.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles W Grant MT
 45.02°N 113.23°W (Elev. 6224 ft)
12:31 am MDT Aug 18, 2026
2am MDT Aug 18, 2026-6pm MDT Aug 24, 2026
 
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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