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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Current conditions at

Rosebud Sioux Tribal Airport (KSUO)

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

Fair

70°F

21°C

Humidity 78%
Wind Speed SE 10 mph
Barometer 30.19 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 17 Sep 3:35 pm CDT
Extended Forecast for

5 Miles ESE Long Valley SD

  • This Afternoon

    This Afternoon: A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 75. East wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly before 3am. Patchy fog between 4am and 5am. Low around 59. East wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%.

    Low: 59 °F

    Showers and
    Patchy Fog

  • Friday

    Friday: Cloudy, with a high near 72. West wind 6 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 72 °F

    Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of showers after midnight. Cloudy, with a low around 55. North wind 5 to 9 mph, with gusts as high as 15 mph.

    Low: 55 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers. Cloudy, with a high near 65. Northeast wind 6 to 14 mph, with gusts as high as 20 mph.

    High: 65 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely. Cloudy, with a low around 53. East wind 8 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    Low: 53 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers, with thunderstorms also possible after noon. High near 62. Chance of precipitation is 90%.

    High: 62 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before midnight, then showers likely. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Showers

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 75. East wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Tonight
Showers and possibly a thunderstorm, mainly before 3am. Patchy fog between 4am and 5am. Low around 59. East wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%.
Friday
Cloudy, with a high near 72. West wind 6 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A 20 percent chance of showers after midnight. Cloudy, with a low around 55. North wind 5 to 9 mph, with gusts as high as 15 mph.
Saturday
A 30 percent chance of showers. Cloudy, with a high near 65. Northeast wind 6 to 14 mph, with gusts as high as 20 mph.
Saturday Night
Showers likely. Cloudy, with a low around 53. East wind 8 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Sunday
Showers, with thunderstorms also possible after noon. High near 62. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm before midnight, then showers likely. Mostly cloudy, with a low around 51.
Monday
A chance of showers. Mostly cloudy, with a high near 64.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 51.
Tuesday
A slight chance of showers. Partly sunny, with a high near 71. Breezy.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 55. Breezy.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 76. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Long Valley SD
 43.43°N 101.4°W (Elev. 2648 ft)
Last Update:
2:47 pm MDT Sep 17, 2026
Forecast Valid:
2pm MDT Sep 17, 2026-6pm MDT Sep 23, 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