Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

-15°F

-26°C

Humidity 74%
Wind Speed Calm
Barometer 30.72 in (1047.5 mb)
Dewpoint -21°F (-29°C)
Visibility NA
Last update 23 Jan 7:56 pm CST
Extended Forecast for

Grenville SD

Cold Weather Advisory until January 24, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until January 24, 12:00pm

    NOW until 12:00pm Sat

    Cold Weather Advisory

  • Tonight

    Low: -17 °F

    Mostly Cloudy

  • Saturday

    Saturday: Cloudy, then gradually becoming mostly sunny and cold, with a high near 1. Wind chill values as low as -30. South wind 7 to 10 mph.

    High: 1 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around -6. South southeast wind around 6 mph becoming northeast after midnight.

    Low: -6 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny and cold, with a high near -3. Wind chill values as low as -23. North wind 7 to 10 mph.

    High: -3 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -15. Northwest wind 8 to 11 mph becoming west southwest after midnight.

    Low: -15 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 15. Southwest wind 13 to 18 mph, with gusts as high as 31 mph.

    High: 15 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 1. Northwest wind 13 to 17 mph, with gusts as high as 28 mph.

    Low: 1 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and cold, with a high near 9. Northwest wind 10 to 13 mph, with gusts as high as 21 mph.

    High: 9 °F

    Cold

Detailed Forecast

Tonight
Mostly cloudy, with a low around -17. Wind chill values as low as -28. Light and variable wind becoming south southwest around 6 mph in the evening.
Saturday
Cloudy, then gradually becoming mostly sunny and cold, with a high near 1. Wind chill values as low as -30. South wind 7 to 10 mph.
Saturday Night
Mostly cloudy, with a low around -6. South southeast wind around 6 mph becoming northeast after midnight.
Sunday
Mostly cloudy, then gradually becoming sunny and cold, with a high near -3. Wind chill values as low as -23. North wind 7 to 10 mph.
Sunday Night
Mostly clear, with a low around -15. Northwest wind 8 to 11 mph becoming west southwest after midnight.
Monday
Mostly sunny, with a high near 15. Southwest wind 13 to 18 mph, with gusts as high as 31 mph.
Monday Night
Partly cloudy, with a low around 1. Northwest wind 13 to 17 mph, with gusts as high as 28 mph.
Tuesday
Mostly sunny and cold, with a high near 9. Northwest wind 10 to 13 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around -2. West northwest wind around 10 mph.
Wednesday
Mostly sunny and cold, with a high near 10.
Wednesday Night
Partly cloudy, with a low around -6.
Thursday
Mostly sunny and cold, with a high near 8.
Thursday Night
Partly cloudy, with a low around -4.
Friday
Partly sunny, with a high near 14.
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ABOUT THIS FORECAST

 
Point Forecast:
Grenville SD
 45.46°N 97.37°W (Elev. 1795 ft)
8:37 pm CST Jan 23, 2026
8pm CST Jan 23, 2026-6pm CST Jan 30, 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