Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

4 Miles WSW Tolstoy SD

Extreme Cold Watch January 22, 06:00pm until January 23, 03:00pm
Winter Weather Advisory January 21, 06:00am until January 21, 03:00pm
Click here for hazard details and duration
Extreme Cold Watch
Winter Weather Advisory
  • Tonight

    Tonight: Mostly cloudy, with a low around 12. West wind 13 to 15 mph, with gusts as high as 23 mph.

    Low: 12 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow, mainly before 9am.  Patchy blowing snow before 5pm. Partly sunny, with a high near 24. Windy, with a west southwest wind 16 to 21 mph becoming northwest 26 to 31 mph in the morning. Winds could gust as high as 45 mph.  Chance of precipitation is 30%.

    High: 24 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -1. West northwest wind 9 to 16 mph, with gusts as high as 30 mph.

    Low: -1 °F

    Partly Cloudy

  • Thursday

    Thursday: Patchy blowing snow between 1pm and 3pm. Partly sunny and cold, with a high near 9. Wind chill values as low as -19. Blustery, with a northwest wind 13 to 21 mph, with gusts as high as 29 mph.

    High: 9 °F

    Partly Sunny
    then Patchy
    Blowing Snow
    and Blustery

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -21. North wind 9 to 16 mph.

    Low: -21 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -6. North wind around 8 mph becoming east southeast in the afternoon.

    High: -6 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around -18. South wind 6 to 8 mph.

    Low: -18 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 2. South wind around 10 mph.

    High: 2 °F

    Cold

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around -13. East southeast wind around 10 mph becoming west after midnight.

    Low: -13 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 12. West wind 13 to 15 mph, with gusts as high as 23 mph.
Wednesday
A chance of snow, mainly before 9am. Patchy blowing snow before 5pm. Partly sunny, with a high near 24. Windy, with a west southwest wind 16 to 21 mph becoming northwest 26 to 31 mph in the morning. Winds could gust as high as 45 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around -1. West northwest wind 9 to 16 mph, with gusts as high as 30 mph.
Thursday
Patchy blowing snow between 1pm and 3pm. Partly sunny and cold, with a high near 9. Wind chill values as low as -19. Blustery, with a northwest wind 13 to 21 mph, with gusts as high as 29 mph.
Thursday Night
Partly cloudy, with a low around -21. North wind 9 to 16 mph.
Friday
Mostly sunny and cold, with a high near -6. North wind around 8 mph becoming east southeast in the afternoon.
Friday Night
Partly cloudy, with a low around -18. South wind 6 to 8 mph.
Saturday
Mostly sunny and cold, with a high near 2. South wind around 10 mph.
Saturday Night
Partly cloudy, with a low around -13. East southeast wind around 10 mph becoming west after midnight.
Sunday
Mostly sunny, with a high near 11.
Sunday Night
Partly cloudy, with a low around -3.
Monday
Mostly sunny, with a high near 21.
Monday Night
Mostly cloudy, with a low around 5.
Tuesday
Partly sunny, with a high near 22.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Tolstoy SD
 45.18°N 99.67°W (Elev. 1906 ft)
9:36 pm CST Jan 20, 2026
10pm CST Jan 20, 2026-6pm CST Jan 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

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