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

Hazardous Weather Conditions

Current conditions at

Rosebud Sioux Tribal Airport (KSUO)

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

Snow Freezing Fog

19°F

-7°C

Humidity 93%
Wind Speed N 16 G 30 mph
Barometer 29.97 in
Dewpoint 18°F (-8°C)
Visibility 0.25 mi
Wind Chill4°F (-16°C)
Last update 15 Mar 7:15 am CDT
Extended Forecast for

Long Valley SD

Winter Weather Advisory March 15, 06:23am until March 15, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory March 15, 06:23am until March 15, 12:00pm

    NOW until 12:00pm Sun

    Winter Weather Advisory

  • Today

    High: 21 °F

    Snow and
    Blowing Snow
    then Blowing
    Snow and
    Windy

  • Tonight

    Tonight: Patchy blowing snow before 8pm. Partly cloudy, with a low around 5. Wind chill values as low as -9. Blustery, with a northwest wind 18 to 23 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

    Low: 5 °F

    Patchy
    Blowing Snow
    and Blustery
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 33. Wind chill values as low as -8. West wind 7 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.

    High: 33 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a temperature falling to near 22 by 10pm, then rising to around 32 during the remainder of the night. Wind chill values as low as 9. East wind 8 to 14 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 22 °F⇑

    Slight Chance
    Snow then
    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64. Breezy, with a southwest wind 14 to 19 mph becoming northwest 23 to 28 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 64 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 43. Breezy, with a west wind 17 to 22 mph, with gusts as high as 29 mph.

    Low: 43 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. Breezy, with a west wind 17 to 24 mph, with gusts as high as 34 mph.

    High: 76 °F

    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45. West wind 10 to 14 mph, with gusts as high as 20 mph.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Today
Snow, mainly before 8am. Widespread blowing snow, mainly before 1pm. High near 21. Wind chill values as low as -6. Windy, with a northwest wind 26 to 33 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. Total daytime snow accumulation of around an inch possible.
Tonight
Patchy blowing snow before 8pm. Partly cloudy, with a low around 5. Wind chill values as low as -9. Blustery, with a northwest wind 18 to 23 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Monday
Mostly sunny, with a high near 33. Wind chill values as low as -8. West wind 7 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.
Monday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a temperature falling to near 22 by 10pm, then rising to around 32 during the remainder of the night. Wind chill values as low as 9. East wind 8 to 14 mph becoming south after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 64. Breezy, with a southwest wind 14 to 19 mph becoming northwest 23 to 28 mph in the afternoon. Winds could gust as high as 38 mph.
Tuesday Night
Mostly cloudy, with a low around 43. Breezy, with a west wind 17 to 22 mph, with gusts as high as 29 mph.
Wednesday
Mostly sunny, with a high near 76. Breezy, with a west wind 17 to 24 mph, with gusts as high as 34 mph.
Wednesday Night
Partly cloudy, with a low around 45. West wind 10 to 14 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Sunny, with a high near 76. Breezy.
Friday Night
Mostly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Long Valley SD
 43.45°N 101.49°W (Elev. 2700 ft)
Last Update:
5:46 am MDT Mar 15, 2026
Forecast Valid:
6am MDT Mar 15, 2026-6pm MDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation