Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Rosebud Sioux Tribal Airport (KSUO)

Lat: 43.26°NLon: 100.86°WElev: 2724ft.

Fair

86°F

30°C

Humidity 13%
Wind Speed SW 8 mph
Barometer 29.61 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 21 Mar 5:35 pm CDT
Extended Forecast for

Long Valley SD

Red Flag Warning March 21, 04:53pm until March 21, 09:00pm
Click here for hazard details and duration
...
  •  
    Red Flag Warning March 21, 04:53pm until March 21, 09:00pm

    NOW until 9:00pm Sat

    Red Flag Warning

  • Tonight

    Low: 39 °F

    Increasing
    Clouds and
    Windy

  • Sunday

    Sunday: A 20 percent chance of showers before noon.  Cloudy through mid morning, then gradual clearing, with a high near 56. North wind 10 to 17 mph, with gusts as high as 22 mph.

    High: 56 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 38. North wind 10 to 14 mph becoming south after midnight.

    Low: 38 °F

    Increasing
    Clouds

  • Monday

    Monday: A 20 percent chance of showers before noon.  Partly sunny, with a high near 68. Breezy, with a south wind 15 to 20 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 36 mph.

    High: 68 °F

    Breezy.
    Slight Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41. South wind 13 to 16 mph, with gusts as high as 22 mph.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 68. South wind 13 to 16 mph becoming north in the morning. Winds could gust as high as 23 mph.

    High: 68 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 43. Northeast wind 13 to 16 mph becoming west after midnight. Winds could gust as high as 22 mph.

    Low: 43 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. West wind 13 to 18 mph becoming north in the afternoon. Winds could gust as high as 24 mph.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Tonight
Increasing clouds, with a low around 39. Windy, with a northwest wind 16 to 21 mph becoming north 27 to 32 mph in the evening. Winds could gust as high as 40 mph.
Sunday
A 20 percent chance of showers before noon. Cloudy through mid morning, then gradual clearing, with a high near 56. North wind 10 to 17 mph, with gusts as high as 22 mph.
Sunday Night
Increasing clouds, with a low around 38. North wind 10 to 14 mph becoming south after midnight.
Monday
A 20 percent chance of showers before noon. Partly sunny, with a high near 68. Breezy, with a south wind 15 to 20 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 36 mph.
Monday Night
Partly cloudy, with a low around 41. South wind 13 to 16 mph, with gusts as high as 22 mph.
Tuesday
Partly sunny, with a high near 68. South wind 13 to 16 mph becoming north in the morning. Winds could gust as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 43. Northeast wind 13 to 16 mph becoming west after midnight. Winds could gust as high as 22 mph.
Wednesday
Mostly sunny, with a high near 77. West wind 13 to 18 mph becoming north in the afternoon. Winds could gust as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 41. Breezy.
Thursday
Mostly sunny, with a high near 61. Breezy.
Thursday Night
Mostly cloudy, with a low around 30. Blustery.
Friday
Partly sunny, with a high near 54. Breezy.
Friday Night
Mostly cloudy, with a low around 32. Breezy.
Saturday
Partly sunny, with a high near 60. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Long Valley SD
 43.45°N 101.49°W (Elev. 2700 ft)
3:32 pm MDT Mar 21, 2026
4pm MDT Mar 21, 2026-6pm MDT Mar 28, 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