Severe Weather Possible from the Central Plains to the Northeast; Building Heat in the West; Fire Weather Concerns for the Southwest

Severe thunderstorms are possible from the Ohio Valley to the central Plains this evening, and the threat will expand into the Mid-Atlantic and Northeast on Monday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry conditions will fuel fire weather concerns for Alaska through this evening and for the Four Corners region through Monday. Read More >

Current conditions at

Sioux Pass MT-16 MP 21 (MTSOO)

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

unknown precip

59°F

15°C

Humidity 95%
Wind Speed SSE 4 MPH
Barometer NA
Dewpoint 58°F (14°C)
Visibility NA
Last update 21 Jun 04:30 PM MDT
Extended Forecast for

15 Miles SW Culbertson MT

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 67. South southeast wind 11 to 13 mph, with gusts as high as 21 mph.

    High: 67 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 7pm.  Patchy fog after midnight.  Otherwise, mostly cloudy, with a low around 49. South southeast wind 5 to 9 mph becoming light  after midnight.

    Low: 49 °F

    Chance
    Showers then
    Patchy Fog

  • Monday

    Monday: Showers and possibly a thunderstorm, mainly before 5pm, then a slight chance of showers and thunderstorms after 5pm.  Patchy fog before 9am. High near 70. Calm wind becoming north 5 to 8 mph in the morning.  Chance of precipitation is 90%.

    High: 70 °F

    Chance
    Showers and
    Patchy Fog
    then Showers

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms, mainly before 11pm.  Mostly cloudy, with a low around 46. Light and variable wind becoming west 5 to 9 mph after midnight.

    Low: 46 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after noon.  Partly sunny, with a high near 68. West wind 13 to 18 mph, with gusts as high as 29 mph.

    High: 68 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45. Northwest wind 10 to 15 mph becoming light north northwest  after midnight. Winds could gust as high as 24 mph.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 70. Calm wind becoming north around 6 mph in the afternoon.

    High: 70 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48. North northeast wind around 6 mph becoming light and variable  after midnight.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 78. East southeast wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 67. South southeast wind 11 to 13 mph, with gusts as high as 21 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 7pm. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 49. South southeast wind 5 to 9 mph becoming light after midnight.
Monday
Showers and possibly a thunderstorm, mainly before 5pm, then a slight chance of showers and thunderstorms after 5pm. Patchy fog before 9am. High near 70. Calm wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 90%.
Monday Night
A 50 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, with a low around 46. Light and variable wind becoming west 5 to 9 mph after midnight.
Tuesday
A 30 percent chance of showers after noon. Partly sunny, with a high near 68. West wind 13 to 18 mph, with gusts as high as 29 mph.
Tuesday Night
Partly cloudy, with a low around 45. Northwest wind 10 to 15 mph becoming light north northwest after midnight. Winds could gust as high as 24 mph.
Wednesday
Partly sunny, with a high near 70. Calm wind becoming north around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 48. North northeast wind around 6 mph becoming light and variable after midnight.
Thursday
Mostly sunny, with a high near 78. East southeast wind 5 to 10 mph, with gusts as high as 18 mph.
Thursday Night
A slight chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 54. East wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday
Mostly cloudy, with a high near 78. Southeast wind 11 to 18 mph, with gusts as high as 29 mph.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 57.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 73.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles SW Culbertson MT
 47.96°N 104.71°W (Elev. 2198 ft)
3:11 pm MDT Jun 21, 2026
4pm MDT Jun 21, 2026-6pm MDT Jun 28, 2026
 
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Additional Resources

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