Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

28°F

-2°C

Humidity 96%
Wind Speed W 8 mph
Barometer 30.04 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 1 Feb 2:15 am CST
Extended Forecast for

11 Miles N Gann Valley SD

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 31. West northwest wind 7 to 10 mph.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 34. Northwest wind 10 to 18 mph, with gusts as high as 26 mph.

    High: 34 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 16. North northwest wind 5 to 8 mph becoming east northeast after midnight.

    Low: 16 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 28. East wind 7 to 9 mph.

    High: 28 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A chance of snow.  Cloudy, with a low around 16. Northeast wind 6 to 8 mph.  Chance of precipitation is 40%.

    Low: 16 °F

    Chance Snow

  • Tuesday

    Tuesday: A slight chance of snow.  Mostly cloudy, with a high near 29. North northeast wind around 7 mph becoming west northwest in the afternoon.  Chance of precipitation is 20%.

    High: 29 °F

    Slight Chance
    Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18. West northwest wind 6 to 11 mph.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 32. North northwest wind 7 to 11 mph becoming west southwest in the afternoon.

    High: 32 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23. South southwest wind 6 to 14 mph.

    Low: 23 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 31. West northwest wind 7 to 10 mph.
Sunday
Partly sunny, with a high near 34. Northwest wind 10 to 18 mph, with gusts as high as 26 mph.
Sunday Night
Mostly cloudy, with a low around 16. North northwest wind 5 to 8 mph becoming east northeast after midnight.
Monday
Mostly cloudy, with a high near 28. East wind 7 to 9 mph.
Monday Night
A chance of snow. Cloudy, with a low around 16. Northeast wind 6 to 8 mph. Chance of precipitation is 40%.
Tuesday
A slight chance of snow. Mostly cloudy, with a high near 29. North northeast wind around 7 mph becoming west northwest in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 18. West northwest wind 6 to 11 mph.
Wednesday
Mostly cloudy, with a high near 32. North northwest wind 7 to 11 mph becoming west southwest in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 23. South southwest wind 6 to 14 mph.
Thursday
Mostly sunny, with a high near 45. Breezy.
Thursday Night
Partly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 35.
Friday Night
Partly cloudy, with a low around 16.
Saturday
Mostly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles N Gann Valley SD
 44.19°N 98.96°W (Elev. 2014 ft)
1:51 am CST Feb 1, 2026
2am CST Feb 1, 2026-6pm CST Feb 7, 2026
 
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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