Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Rosebud Sioux Tribal Airport (KSUO)

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

A Few Clouds

37°F

3°C

Humidity 48%
Wind Speed SW 5 mph
Barometer 30.10 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 19 Apr 12:55 am CDT
Extended Forecast for

Long Valley SD

  • Overnight

    Overnight: Partly cloudy, with a low around 27. Southwest wind 7 to 11 mph, with gusts as high as 17 mph.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 60. Northwest wind 5 to 14 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. Breezy, with an east wind 15 to 21 mph becoming south after midnight. Winds could gust as high as 29 mph.

    Low: 39 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Monday

    Monday: Sunny, with a high near 83. Breezy, with a south wind 14 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 32 mph.

    High: 83 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. North wind 5 to 13 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Southwest wind 6 to 13 mph becoming southeast in the morning. Winds could gust as high as 21 mph.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. Breezy, with a southeast wind 11 to 20 mph, with gusts as high as 26 mph.

    Low: 58 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 89. Breezy, with a south wind 20 to 26 mph, with gusts as high as 36 mph.

    High: 89 °F

    Breezy.
    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers.  Mostly cloudy, then gradually becoming mostly clear, with a low around 50. Breezy.

    Low: 50 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Overnight
Partly cloudy, with a low around 27. Southwest wind 7 to 11 mph, with gusts as high as 17 mph.
Sunday
Sunny, with a high near 60. Northwest wind 5 to 14 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 39. Breezy, with an east wind 15 to 21 mph becoming south after midnight. Winds could gust as high as 29 mph.
Monday
Sunny, with a high near 83. Breezy, with a south wind 14 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 32 mph.
Monday Night
Mostly clear, with a low around 42. North wind 5 to 13 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 88. Southwest wind 6 to 13 mph becoming southeast in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 58. Breezy, with a southeast wind 11 to 20 mph, with gusts as high as 26 mph.
Wednesday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. Breezy, with a south wind 20 to 26 mph, with gusts as high as 36 mph.
Wednesday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, then gradually becoming mostly clear, with a low around 50. Breezy.
Thursday
A chance of showers, mainly after noon. Mostly sunny, with a high near 66. Very windy.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 32. Windy.
Friday
A slight chance of showers. Mostly sunny, with a high near 55. Breezy.
Friday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 31. Blustery.
Saturday
A slight chance of rain and snow showers. Mostly sunny, with a high near 55. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Long Valley SD
 43.45°N 101.49°W (Elev. 2700 ft)
10:22 pm MDT Apr 18, 2026
12am MDT Apr 19, 2026-6pm MDT Apr 25, 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