Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Current conditions at

Sioux Pass MT-16 MP 21 (MTSOO)

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

NA

60°F

16°C

Humidity 83%
Wind Speed NNE 5 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Last update 10 Aug 12:45 AM MDT
Extended Forecast for

Culbertson MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 54. Northeast wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 54 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 83. East wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 83 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: A chance of showers and thunderstorms between midnight and 1am.  Partly cloudy, with a low around 56. East wind 7 to 10 mph.  Chance of precipitation is 30%.

    Low: 56 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers after noon.  Mostly sunny, with a high near 84. East southeast wind around 7 mph becoming north in the afternoon.

    High: 84 °F

    Sunny then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before midnight.  Mostly clear, with a low around 54. North northeast wind 5 to 9 mph.

    Low: 54 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after noon.  Mostly sunny, with a high near 77. East northeast wind 5 to 9 mph.  Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms after midnight.  Partly cloudy, with a low around 51. Northeast wind 8 to 10 mph.

    Low: 51 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 73. East wind 8 to 14 mph, with gusts as high as 24 mph.

    High: 73 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 52. East southeast wind 11 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 60%.

    Low: 52 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 54. Northeast wind 8 to 10 mph, with gusts as high as 18 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 83. East wind 8 to 10 mph, with gusts as high as 18 mph.
Monday Night
A chance of showers and thunderstorms between midnight and 1am. Partly cloudy, with a low around 56. East wind 7 to 10 mph. Chance of precipitation is 30%.
Tuesday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 84. East southeast wind around 7 mph becoming north in the afternoon.
Tuesday Night
A 20 percent chance of showers before midnight. Mostly clear, with a low around 54. North northeast wind 5 to 9 mph.
Wednesday
A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 77. East northeast wind 5 to 9 mph. Chance of precipitation is 30%.
Wednesday Night
A 40 percent chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 51. Northeast wind 8 to 10 mph.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 73. East wind 8 to 14 mph, with gusts as high as 24 mph.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. East southeast wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Friday
Showers likely. Cloudy, with a high near 70. East wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 50. North wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday
A slight chance of showers. Mostly cloudy, with a high near 73.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 51.
Sunday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Culbertson MT
 48.16°N 104.51°W (Elev. 1998 ft)
4:06 pm MDT Aug 9, 2026
1am MDT Aug 10, 2026-6pm MDT Aug 16, 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