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

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Rosebud Sioux Tribal Airport (KSUO)

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

Fair

68°F

20°C

Humidity 53%
Wind Speed S 6 G 12 mph
Barometer 29.37 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 16 Jun 11:55 pm CDT
Extended Forecast for

Okreek SD

Wind Advisory June 17, 10:00am until June 17, 09:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: A slight chance of showers before 1am, then a slight chance of showers and thunderstorms between 1am and 3am, then a slight chance of showers after 3am. Mostly cloudy, with a low around 65. West wind 7 to 13 mph becoming north. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 79. Windy, with a northwest wind 23 to 33 mph, with gusts as high as 41 mph.

    High: 79 °F

    Sunny and
    Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. Breezy, with a northwest wind 19 to 24 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 34 mph.

    Low: 52 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77. Northwest wind 13 to 15 mph, with gusts as high as 24 mph.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52. Northwest wind 6 to 10 mph becoming southeast after midnight. Winds could gust as high as 17 mph.

    Low: 52 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 84. West wind around 11 mph becoming north in the afternoon. Winds could gust as high as 18 mph.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. Breezy.

    High: 80 °F

    Showers
    Likely and
    Breezy

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Showers
    Likely

Detailed Forecast

Overnight
A slight chance of showers before 1am, then a slight chance of showers and thunderstorms between 1am and 3am, then a slight chance of showers after 3am. Mostly cloudy, with a low around 65. West wind 7 to 13 mph becoming north. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 79. Windy, with a northwest wind 23 to 33 mph, with gusts as high as 41 mph.
Wednesday Night
Mostly clear, with a low around 52. Breezy, with a northwest wind 19 to 24 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 34 mph.
Thursday
Mostly sunny, with a high near 77. Northwest wind 13 to 15 mph, with gusts as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 52. Northwest wind 6 to 10 mph becoming southeast after midnight. Winds could gust as high as 17 mph.
Juneteenth
Mostly sunny, with a high near 84. West wind around 11 mph becoming north in the afternoon. Winds could gust as high as 18 mph.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 54.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. Breezy.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55.
Sunday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, with a high near 72.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Monday
A slight chance of showers. Mostly cloudy, with a high near 75.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Tuesday
A chance of showers. Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Okreek SD
 43.36°N 100.38°W (Elev. 2300 ft)
Last Update:
11:47 pm CDT Jun 16, 2026
Forecast Valid:
12am CDT Jun 17, 2026-6pm CDT Jun 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