Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Current conditions at

Sioux Pass MT-16 MP 21 (MTSOO)

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

NA

71°F

22°C

Humidity 69%
Wind Speed ENE 5 MPH
Barometer NA
Dewpoint 60°F (16°C)
Visibility NA
Last update 25 Jul 02:30 AM MDT
Extended Forecast for

Culbertson MT

Extreme Heat Warning July 25, 02:53am until July 26, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 25, 02:53am until July 26, 10:00pm

    NOW until 10:00pm Sun

    Extreme Heat Warning

  • Overnight

    Low: 63 °F

    Haze

  • Saturday

    Saturday: Widespread haze. Sunny and hot, with a high near 101. Calm wind becoming west 5 to 7 mph.

    High: 101 °F

    Haze

  • Saturday Night

    Saturday Night: Cloudy, then gradually becoming partly cloudy, with a low around 68. Light and variable wind becoming east 5 to 7 mph in the evening.

    Low: 68 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny and hot, with a high near 98. West wind 8 to 16 mph, with gusts as high as 29 mph.

    High: 98 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. Northwest wind 6 to 11 mph becoming light and variable  after midnight. Winds could gust as high as 23 mph.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 95. Calm wind becoming east around 6 mph in the afternoon.

    High: 95 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. North wind around 6 mph becoming east after midnight.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95. East wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 95 °F

    Sunny

Detailed Forecast

Overnight
Widespread haze. Mostly clear, with a low around 63. Calm wind.
Saturday
Widespread haze. Sunny and hot, with a high near 101. Calm wind becoming west 5 to 7 mph.
Saturday Night
Cloudy, then gradually becoming partly cloudy, with a low around 68. Light and variable wind becoming east 5 to 7 mph in the evening.
Sunday
Sunny and hot, with a high near 98. West wind 8 to 16 mph, with gusts as high as 29 mph.
Sunday Night
Mostly clear, with a low around 63. Northwest wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.
Monday
Mostly sunny, with a high near 95. Calm wind becoming east around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 63. North wind around 6 mph becoming east after midnight.
Tuesday
Sunny, with a high near 95. East wind 5 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after midnight. Partly cloudy, with a low around 65. East wind 10 to 13 mph, with gusts as high as 21 mph.
Wednesday
Sunny and hot, with a high near 98. East southeast wind around 9 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. East southeast wind 5 to 8 mph.
Thursday
Mostly sunny and hot, with a high near 96.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 65.
Friday
Mostly sunny, with a high near 95.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Culbertson MT
 48.14°N 104.51°W (Elev. 1919 ft)
12:35 am MDT Jul 25, 2026
2am MDT Jul 25, 2026-6pm MDT Jul 31, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database