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

Heavy Rain and Flooding Concerns in Hawaii; Severe Weather in the Plains

A storm system is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the Hawaiian Islands through the weekend. Strong to severe thunderstorms are forecast from the Southern Plains to the Mid-Missouri Valley Thursday afternoon and evening. Large hail and strong winds are the primary threats. Read More >

Current conditions at

Rosebud Sioux Tribal Airport (KSUO)

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

Fair

27°F

-3°C

Humidity 80%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 9 Apr 4:55 am CDT
Extended Forecast for

Long Valley SD

  • Overnight

    Overnight: A 20 percent chance of snow showers. Partly cloudy, with a steady temperature around 30. Southeast wind around 8 mph.

    Low: 30 °F

    Slight Chance
    Snow Showers

  • Thursday

    Thursday: A slight chance of rain and snow showers before 10am, then a slight chance of rain showers between 10am and noon. Mostly cloudy, then gradually becoming sunny, with a high near 59. Wind chill values as low as 17 early. Breezy, with a southeast wind 10 to 15 mph becoming northeast 18 to 23 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 20%.

    High: 59 °F

    Slight Chance
    Rain/Snow
    then Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. Blustery, with a northeast wind 17 to 22 mph becoming southeast 6 to 11 mph after midnight. Winds could gust as high as 29 mph.

    Low: 28 °F

    Mostly Clear
    and Blustery
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 59. Breezy, with a southeast wind 8 to 13 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 59 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47. Breezy, with a southeast wind 23 to 26 mph, with gusts as high as 36 mph.

    Low: 47 °F

    Mostly Cloudy
    and Breezy

  • Saturday

    Saturday: Partly sunny, with a high near 79. Windy, with a south wind 23 to 30 mph, with gusts as high as 39 mph.

    High: 79 °F

    Partly Sunny
    and Windy

  • Saturday Night

    Saturday Night: A 40 percent chance of showers before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 55. Breezy, with a south wind around 22 mph becoming southwest after midnight. Winds could gust as high as 31 mph.

    Low: 55 °F

    Breezy.
    Chance
    Showers then
    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 79. Breezy, with a west wind 18 to 28 mph, with gusts as high as 36 mph.

    High: 79 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers, mainly after midnight. Partly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 20 percent chance of snow showers. Partly cloudy, with a steady temperature around 30. Southeast wind around 8 mph.
Thursday
A slight chance of rain and snow showers before 10am, then a slight chance of rain showers between 10am and noon. Mostly cloudy, then gradually becoming sunny, with a high near 59. Wind chill values as low as 17 early. Breezy, with a southeast wind 10 to 15 mph becoming northeast 18 to 23 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 28. Blustery, with a northeast wind 17 to 22 mph becoming southeast 6 to 11 mph after midnight. Winds could gust as high as 29 mph.
Friday
Mostly sunny, with a high near 59. Breezy, with a southeast wind 8 to 13 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 33 mph.
Friday Night
Mostly cloudy, with a low around 47. Breezy, with a southeast wind 23 to 26 mph, with gusts as high as 36 mph.
Saturday
Partly sunny, with a high near 79. Windy, with a south wind 23 to 30 mph, with gusts as high as 39 mph.
Saturday Night
A 40 percent chance of showers before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 55. Breezy, with a south wind around 22 mph becoming southwest after midnight. Winds could gust as high as 31 mph.
Sunday
Sunny, with a high near 79. Breezy, with a west wind 18 to 28 mph, with gusts as high as 36 mph.
Sunday Night
A chance of showers, mainly after midnight. Partly cloudy, with a low around 48.
Monday
A chance of showers, mainly after noon. Mostly sunny, with a high near 70. Breezy.
Monday Night
Showers likely. Mostly cloudy, with a low around 36. Breezy.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 48. Breezy.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 33.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 66.
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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:
3:48 am MDT Apr 9, 2026
Forecast Valid:
4am MDT Apr 9, 2026-6pm MDT Apr 15, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation