National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Rosebud Sioux Tribal Airport (KSUO)

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

Fair

43°F

6°C

Humidity 76%
Wind Speed S 12 mph
Barometer 29.94 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 24 Dec 11:35 pm CST
Extended Forecast for

Long Valley SD

  • Tonight

    Tonight: Mostly cloudy, with a temperature rising to around 46 by 5am. South wind 11 to 18 mph, with gusts as high as 24 mph.

    Low: 38 °F⇑

    Mostly Cloudy

  • Christmas Day

    Christmas Day: Partly sunny, with a high near 71. Breezy, with a west wind 17 to 20 mph, with gusts as high as 29 mph.

    High: 71 °F

    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42. West wind 14 to 16 mph, with gusts as high as 25 mph.

    Low: 42 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63. Breezy, with a southwest wind 17 to 22 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 37 mph.

    High: 63 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 26 mph.

    Low: 41 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 56. Breezy, with a west wind 18 to 25 mph becoming northwest in the afternoon. Winds could gust as high as 34 mph.

    High: 56 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: A slight chance of rain and snow before 7pm, then a slight chance of snow. Mostly cloudy, with a low around 11. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.

    Low: 11 °F

    Slight Chance
    Rain/Snow and
    Windy

  • Sunday

    Sunday: Sunny, with a high near 23. Windy, with a northwest wind 29 to 34 mph decreasing to 22 to 27 mph in the afternoon. Winds could gust as high as 46 mph.

    High: 23 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: Clear, with a low around 9.

    Low: 9 °F

    Clear

Detailed Forecast

Tonight
Mostly cloudy, with a temperature rising to around 46 by 5am. South wind 11 to 18 mph, with gusts as high as 24 mph.
Christmas Day
Partly sunny, with a high near 71. Breezy, with a west wind 17 to 20 mph, with gusts as high as 29 mph.
Thursday Night
Mostly clear, with a low around 42. West wind 14 to 16 mph, with gusts as high as 25 mph.
Friday
Sunny, with a high near 63. Breezy, with a southwest wind 17 to 22 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 37 mph.
Friday Night
Partly cloudy, with a low around 41. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 26 mph.
Saturday
Mostly sunny, with a high near 56. Breezy, with a west wind 18 to 25 mph becoming northwest in the afternoon. Winds could gust as high as 34 mph.
Saturday Night
A slight chance of rain and snow before 7pm, then a slight chance of snow. Mostly cloudy, with a low around 11. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 23. Windy, with a northwest wind 29 to 34 mph decreasing to 22 to 27 mph in the afternoon. Winds could gust as high as 46 mph.
Sunday Night
Clear, with a low around 9.
Monday
Sunny, with a high near 36.
Monday Night
Partly cloudy, with a low around 22.
Tuesday
Mostly sunny, with a high near 47. Breezy.
Tuesday Night
Mostly cloudy, with a low around 23.
Wednesday
Partly sunny, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Long Valley SD
 43.45°N 101.49°W (Elev. 2700 ft)
Last Update:
9:51 pm MST Dec 24, 2025
Forecast Valid:
10pm MST Dec 24, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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