Severe Thunderstorms and Heavy Rain Across the Central US; Wintry Mix in the Northern Plains and Northeast

Severe thunderstorms and flash flooding are possible across the central U.S. through Saturday. Large hail, damaging winds, and tornadoes are all possible. There is an increased threat for wildfire development in the southern to central High Plains. A wintry mix of snow, sleet and freezing rain are forecast across portions of the northern Plains and central New England into early Friday morning. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

52°F

11°C

Humidity 54%
Wind Speed SE 14 mph
Barometer 29.68 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 5 Mar 7:15 pm CST
Extended Forecast for

Fort Thompson SD

  • Tonight

    Tonight: A slight chance of drizzle after 3am.  Increasing clouds, with a low around 29. Southeast wind 10 to 17 mph becoming north northwest after midnight. Winds could gust as high as 25 mph.

    Low: 29 °F

    Mostly Clear
    then Slight
    Chance
    Drizzle

  • Friday

    Friday: A chance of rain, snow, and freezing rain before 3pm, then a chance of rain and snow between 3pm and 4pm, then a chance of snow after 4pm.  Mostly cloudy, with a high near 41. Breezy, with a north northwest wind 18 to 23 mph, with gusts as high as 32 mph.  Chance of precipitation is 50%.

    High: 41 °F

    Chance Wintry
    Mix and
    Breezy

  • Friday Night

    Friday Night: Snow likely, mainly before midnight.  Cloudy during the early evening, then gradual clearing, with a low around 21. North northwest wind 7 to 17 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 21 °F

    Snow Likely
    then Slight
    Chance Snow

  • Saturday

    Saturday: Sunny, with a high near 51. West wind 7 to 15 mph.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 33. Southwest wind 10 to 13 mph.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 69. West southwest wind 10 to 17 mph.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37. Southwest wind 9 to 11 mph becoming north northwest after midnight.

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 59. North northwest wind 9 to 11 mph becoming east in the afternoon.

    High: 59 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of rain before midnight, then a slight chance of snow.  Partly cloudy, with a low around 34. East wind 11 to 17 mph becoming north after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    Rain then
    Slight Chance
    Snow

Detailed Forecast

Tonight
A slight chance of drizzle after 3am. Increasing clouds, with a low around 29. Southeast wind 10 to 17 mph becoming north northwest after midnight. Winds could gust as high as 25 mph.
Friday
A chance of rain, snow, and freezing rain before 3pm, then a chance of rain and snow between 3pm and 4pm, then a chance of snow after 4pm. Mostly cloudy, with a high near 41. Breezy, with a north northwest wind 18 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 50%.
Friday Night
Snow likely, mainly before midnight. Cloudy during the early evening, then gradual clearing, with a low around 21. North northwest wind 7 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Saturday
Sunny, with a high near 51. West wind 7 to 15 mph.
Saturday Night
Partly cloudy, with a low around 33. Southwest wind 10 to 13 mph.
Sunday
Sunny, with a high near 69. West southwest wind 10 to 17 mph.
Sunday Night
Partly cloudy, with a low around 37. Southwest wind 9 to 11 mph becoming north northwest after midnight.
Monday
Mostly sunny, with a high near 59. North northwest wind 9 to 11 mph becoming east in the afternoon.
Monday Night
A slight chance of rain before midnight, then a slight chance of snow. Partly cloudy, with a low around 34. East wind 11 to 17 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of snow before noon, then a slight chance of rain. Partly sunny, with a high near 57. Chance of precipitation is 20%.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 46.
Wednesday Night
Partly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 60. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
6:36 pm CST Mar 5, 2026
7pm CST Mar 5, 2026-6pm CDT Mar 12, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database