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

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Rosebud Sioux Tribal Airport (KSUO)

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

Fair

66°F

19°C

Humidity 46%
Wind Speed N 8 mph
Barometer 29.76 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 17 Jun 9:35 pm CDT
Extended Forecast for

Mission SD

  • Tonight

    Tonight: A chance of sprinkles before 10pm. Partly cloudy, with a low around 50. Northwest wind 8 to 18 mph, with gusts as high as 36 mph.

    Low: 50 °F

    Chance
    Sprinkles

  • Thursday

    Thursday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 77. Northwest wind 8 to 13 mph, with gusts as high as 22 mph.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52. North wind 5 to 8 mph becoming south after midnight. Winds could gust as high as 16 mph.

    Low: 52 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly cloudy, then gradually becoming sunny, with a high near 81. West wind 7 to 13 mph becoming north in the afternoon. Winds could gust as high as 18 mph.

    High: 81 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: A 40 percent chance of showers after 1am. Partly cloudy, with a low around 52. North wind 7 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph.

    Low: 52 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after 1pm. High near 77. Breezy, with a southeast wind 11 to 16 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 80%.

    High: 77 °F

    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Low around 53. Breezy. Chance of precipitation is 90%.

    Low: 53 °F

    Showers and
    Breezy

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 67. Breezy.

    High: 67 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A chance of sprinkles before 10pm. Partly cloudy, with a low around 50. Northwest wind 8 to 18 mph, with gusts as high as 36 mph.
Thursday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 77. Northwest wind 8 to 13 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 52. North wind 5 to 8 mph becoming south after midnight. Winds could gust as high as 16 mph.
Juneteenth
Mostly cloudy, then gradually becoming sunny, with a high near 81. West wind 7 to 13 mph becoming north in the afternoon. Winds could gust as high as 18 mph.
Friday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 52. North wind 7 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph.
Saturday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 77. Breezy, with a southeast wind 11 to 16 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Low around 53. Breezy. Chance of precipitation is 90%.
Sunday
Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 67. Breezy.
Sunday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 49.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Tuesday
A chance of showers. Mostly sunny, with a high near 75.
Tuesday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 52.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mission SD
 43.31°N 100.65°W (Elev. 2585 ft)
Last Update:
8:37 pm CDT Jun 17, 2026
Forecast Valid:
9pm CDT Jun 17, 2026-6pm CDT Jun 24, 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