Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Current conditions at

Sioux Pass MT-16 MP 21 (MTSOO)

Lat: 47.91973°NLon: 104.32619°WElev: 2480.0ft.

NA

59°F

15°C

Humidity 66%
Wind Speed ENE 0 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 26 Aug 07:15 AM MDT
Extended Forecast for

3 Miles SE Culbertson MT

  • Today

    Today: Sunny, with a high near 82. Light and variable wind.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. East wind 3 to 6 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 91. Southeast wind 7 to 14 mph, with gusts as high as 24 mph.

    High: 91 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms after midnight.  Increasing clouds, with a low around 61. Southeast wind 13 to 17 mph, with gusts as high as 29 mph.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 93. Southeast wind 6 to 9 mph becoming west northwest in the afternoon.

    High: 93 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 60. North wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 86. Light and variable wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 86 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers.  Mostly cloudy, with a low around 54. West wind 6 to 10 mph becoming north northwest in the evening. Winds could gust as high as 20 mph.

    Low: 54 °F

    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers.  Partly sunny, with a high near 79. West wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 79 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 82. Light and variable wind.
Tonight
Mostly clear, with a low around 51. East wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 91. Southeast wind 7 to 14 mph, with gusts as high as 24 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms after midnight. Increasing clouds, with a low around 61. Southeast wind 13 to 17 mph, with gusts as high as 29 mph.
Friday
Partly sunny, with a high near 93. Southeast wind 6 to 9 mph becoming west northwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 60. North wind around 5 mph becoming calm in the evening.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86. Light and variable wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 54. West wind 6 to 10 mph becoming north northwest in the evening. Winds could gust as high as 20 mph.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 79. West wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 32 mph.
Sunday Night
A 30 percent chance of showers, mainly before midnight. Partly cloudy, with a low around 49. West wind 8 to 17 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 82. Southwest wind 9 to 14 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 52.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Culbertson MT
 48.12°N 104.48°W (Elev. 1919 ft)
3:51 am MDT Aug 26, 2026
7am MDT Aug 26, 2026-6pm MDT Sep 1, 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