Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest

A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

71°F

22°C

Humidity 45%
Wind Speed N 12 mph
Barometer 30.27 in
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 23 Aug 1:15 pm CDT
Extended Forecast for

Fort Thompson SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 74. Northwest wind around 13 mph, with gusts as high as 24 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. North northwest wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 74. Light north northwest wind becoming north 5 to 10 mph in the morning.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48. North northeast wind 5 to 9 mph becoming east after midnight.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75. East wind 3 to 8 mph.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. East southeast wind 7 to 9 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80. Southeast wind 6 to 13 mph.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. Southeast wind 10 to 13 mph.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. South wind 9 to 14 mph.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 74. Northwest wind around 13 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 51. North northwest wind 5 to 10 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 74. Light north northwest wind becoming north 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 48. North northeast wind 5 to 9 mph becoming east after midnight.
Monday
Sunny, with a high near 75. East wind 3 to 8 mph.
Monday Night
Mostly clear, with a low around 51. East southeast wind 7 to 9 mph.
Tuesday
Sunny, with a high near 80. Southeast wind 6 to 13 mph.
Tuesday Night
Partly cloudy, with a low around 58. Southeast wind 10 to 13 mph.
Wednesday
Mostly sunny, with a high near 84. South wind 9 to 14 mph.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Mostly cloudy, with a low around 58.
Friday
Partly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
1:14 pm CDT Aug 23, 2025
1pm CDT Aug 23, 2025-6pm CDT Aug 29, 2025
 
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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