Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Partly Cloudy

N/A

Humidity NA
Wind Speed SE 3 mph
Barometer 30.16 in
Dewpoint N/A
Visibility 10.00 mi
Last update 20 Jan 5:15 am CST
Extended Forecast for

11 Miles N Gann Valley SD

  • Today

    Today: Snow, mainly after noon.  High near 21. South wind 5 to 10 mph becoming west northwest in the afternoon.  Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.

    High: 21 °F

    Mostly Cloudy
    then Snow

  • Tonight

    Tonight: A chance of snow, mainly before 7pm.  Mostly cloudy, with a low around 12. Northwest wind 10 to 14 mph.  Chance of precipitation is 30%.

    Low: 12 °F

    Chance Snow
    then Partly
    Cloudy

  • Wednesday

    Wednesday: A chance of snow, mainly before noon.  Patchy blowing snow after 9am. Partly sunny, with a high near 27. Windy, with a west southwest wind 15 to 25 mph becoming northwest 27 to 37 mph in the afternoon.  Chance of precipitation is 40%.

    High: 27 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 4. West northwest wind 10 to 18 mph, with gusts as high as 28 mph.

    Low: 4 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 12. Northwest wind 10 to 18 mph.

    High: 12 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -17. North wind 9 to 13 mph.

    Low: -17 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -6. North wind around 9 mph becoming east northeast in the afternoon.

    High: -6 °F

    Cold

  • Friday Night

    Friday Night: A slight chance of snow after midnight.  Mostly cloudy, with a low around -15. East southeast wind 8 to 10 mph.  Chance of precipitation is 20%.

    Low: -15 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: A slight chance of snow before noon.  Mostly sunny and cold, with a high near 4. South wind around 11 mph.  Chance of precipitation is 20%.

    High: 4 °F

    Slight Chance
    Snow then
    Mostly Sunny

Detailed Forecast

Today
Snow, mainly after noon. High near 21. South wind 5 to 10 mph becoming west northwest in the afternoon. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.
Tonight
A chance of snow, mainly before 7pm. Mostly cloudy, with a low around 12. Northwest wind 10 to 14 mph. Chance of precipitation is 30%.
Wednesday
A chance of snow, mainly before noon. Patchy blowing snow after 9am. Partly sunny, with a high near 27. Windy, with a west southwest wind 15 to 25 mph becoming northwest 27 to 37 mph in the afternoon. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 4. West northwest wind 10 to 18 mph, with gusts as high as 28 mph.
Thursday
Partly sunny, with a high near 12. Northwest wind 10 to 18 mph.
Thursday Night
Partly cloudy, with a low around -17. North wind 9 to 13 mph.
Friday
Mostly sunny and cold, with a high near -6. North wind around 9 mph becoming east northeast in the afternoon.
Friday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around -15. East southeast wind 8 to 10 mph. Chance of precipitation is 20%.
Saturday
A slight chance of snow before noon. Mostly sunny and cold, with a high near 4. South wind around 11 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around -9.
Sunday
Mostly sunny, with a high near 15.
Sunday Night
Partly cloudy, with a low around -1.
Monday
Mostly sunny, with a high near 25.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles N Gann Valley SD
 44.19°N 98.96°W (Elev. 2014 ft)
4:36 am CST Jan 20, 2026
5am CST Jan 20, 2026-6pm CST Jan 26, 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