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

7°F

-14°C

Humidity 63%
Wind Speed Calm
Barometer 30.70 in
Dewpoint -3°F (-19°C)
Visibility 10.00 mi
Last update 30 Jan 6:55 pm CST
Extended Forecast for

11 Miles N Gann Valley SD

  • Tonight

    Tonight: Mostly clear, with a low around -4. Wind chill values as low as -21. East wind 5 to 14 mph becoming south after midnight.

    Low: -4 °F

    Mostly Clear

  • Saturday

    Saturday: Snow likely before 4pm, then a chance of snow and freezing rain.  Patchy blowing snow between 1pm and 3pm. Increasing clouds, with a high near 28. Wind chill values as low as -21. Breezy, with a south wind 15 to 20 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 37 mph.  Chance of precipitation is 60%. Little or no ice accumulation expected.  New snow accumulation of less than a half inch possible.

    High: 28 °F

    Wintry Mix
    Likely and
    Patchy
    Blowing Snow

  • Saturday Night

    Saturday Night: A chance of snow, possibly mixing with freezing rain after 7pm, then gradually ending.  Cloudy, then gradually becoming partly cloudy, with a temperature rising to around 27 by 4am. Breezy, with a south wind 14 to 21 mph becoming west northwest after midnight. Winds could gust as high as 29 mph.  Chance of precipitation is 30%.

    Low: 23 °F

    Breezy.
    Chance Wintry
    Mix then
    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 34. Northwest wind 9 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 18. North northwest wind 5 to 7 mph becoming east southeast after midnight.

    Low: 18 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 31. East southeast wind 7 to 10 mph.

    High: 31 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 18. East wind 7 to 10 mph becoming west after midnight.

    Low: 18 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow.  Mostly cloudy, with a high near 30. North northwest wind 9 to 13 mph.  Chance of precipitation is 20%.

    High: 30 °F

    Slight Chance
    Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 15. North northwest wind 8 to 10 mph.

    Low: 15 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around -4. Wind chill values as low as -21. East wind 5 to 14 mph becoming south after midnight.
Saturday
Snow likely before 4pm, then a chance of snow and freezing rain. Patchy blowing snow between 1pm and 3pm. Increasing clouds, with a high near 28. Wind chill values as low as -21. Breezy, with a south wind 15 to 20 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 60%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Saturday Night
A chance of snow, possibly mixing with freezing rain after 7pm, then gradually ending. Cloudy, then gradually becoming partly cloudy, with a temperature rising to around 27 by 4am. Breezy, with a south wind 14 to 21 mph becoming west northwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 34. Northwest wind 9 to 18 mph, with gusts as high as 26 mph.
Sunday Night
Mostly cloudy, with a low around 18. North northwest wind 5 to 7 mph becoming east southeast after midnight.
Monday
Mostly cloudy, with a high near 31. East southeast wind 7 to 10 mph.
Monday Night
Mostly cloudy, with a low around 18. East wind 7 to 10 mph becoming west after midnight.
Tuesday
A slight chance of snow. Mostly cloudy, with a high near 30. North northwest wind 9 to 13 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 15. North northwest wind 8 to 10 mph.
Wednesday
Partly sunny, with a high near 30.
Wednesday Night
Partly cloudy, with a low around 20.
Thursday
Mostly sunny, with a high near 46.
Thursday Night
Partly cloudy, with a low around 23.
Friday
Mostly sunny, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles N Gann Valley SD
 44.19°N 98.96°W (Elev. 2014 ft)
6:36 pm CST Jan 30, 2026
7pm CST Jan 30, 2026-6pm CST Feb 6, 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