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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

N/A

Humidity NA
Wind Speed Calm
Barometer 30.42 in
Dewpoint N/A
Visibility 10.00 mi
Last update 11 Jan 3:15 am CST
Extended Forecast for

Stephan SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 10. Light south wind.

    Low: 10 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 46. South wind 5 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

    High: 46 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 27. West northwest wind 8 to 13 mph.

    Low: 27 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 49. West wind 8 to 14 mph.

    High: 49 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38. West northwest wind 11 to 18 mph, with gusts as high as 30 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 51. Breezy, with a west northwest wind 18 to 25 mph, with gusts as high as 36 mph.

    High: 51 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 25. North northwest wind 16 to 18 mph, with gusts as high as 29 mph.

    Low: 25 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 36. North northwest wind 7 to 15 mph becoming east in the afternoon. Winds could gust as high as 24 mph.

    High: 36 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24. East southeast wind 6 to 13 mph becoming south after midnight. Winds could gust as high as 21 mph.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 10. Light south wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 46. South wind 5 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Increasing clouds, with a low around 27. West northwest wind 8 to 13 mph.
Monday
Mostly sunny, with a high near 49. West wind 8 to 14 mph.
Monday Night
Mostly cloudy, with a low around 38. West northwest wind 11 to 18 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 51. Breezy, with a west northwest wind 18 to 25 mph, with gusts as high as 36 mph.
Tuesday Night
Mostly cloudy, with a low around 25. North northwest wind 16 to 18 mph, with gusts as high as 29 mph.
Wednesday
Mostly sunny, with a high near 36. North northwest wind 7 to 15 mph becoming east in the afternoon. Winds could gust as high as 24 mph.
Wednesday Night
Mostly cloudy, with a low around 24. East southeast wind 6 to 13 mph becoming south after midnight. Winds could gust as high as 21 mph.
Thursday
A slight chance of rain and snow after noon. Mostly sunny, with a high near 45. Windy. Chance of precipitation is 20%.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 23. Blustery. Chance of precipitation is 20%.
Friday
A chance of snow. Mostly cloudy, with a high near 30. Windy. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 8. Blustery.
Saturday
Mostly sunny, with a high near 24.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Stephan SD
 44.25°N 99.47°W (Elev. 1867 ft)
Last Update:
3:06 am CST Jan 11, 2026
Forecast Valid:
3am CST Jan 11, 2026-6pm CST Jan 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation