National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Northeast; Heavy Rain Returns to California

An Alberta clipper will bring lake effect snow downwind of the Great Lakes, with the highest snow totals downwind of Lakes Erie and Ontario. Snow squalls may impact New Year's Eve travel during the evening and overnight hours across parts of the Great Lakes, Ohio Valley, and Northeast. Heavy rain will bring a flash flooding threat for southern California on New Year's Eve into New Year's Day. Read More >

Hazardous Weather Conditions

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

34°F

1°C

Humidity 85%
Wind Speed W 10 mph
Barometer 29.95 in (1016.0 mb)
Dewpoint 30°F (-1°C)
Visibility NA
Wind Chill26°F (-3°C)
Last update 31 Dec 4:56 am CST
Extended Forecast for

Grenville SD

  • Today

    Today: A chance of flurries before 10am. Patchy fog between 7am and 9am. Otherwise, mostly cloudy, with a temperature falling to around 5 by 5pm. West northwest wind 7 to 16 mph becoming north northeast in the morning. Winds could gust as high as 25 mph.

    High: 27 °F⇓

    Chance
    Flurries and
    Patchy Fog
    then Mostly
    Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 0. North wind 6 to 11 mph becoming light and variable.

    Low: 0 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 19. South wind 6 to 8 mph becoming west northwest in the afternoon.

    High: 19 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 9. Northwest wind around 6 mph.

    Low: 9 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 17. North wind around 6 mph.

    High: 17 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 11. East wind around 6 mph becoming south southeast in the evening.

    Low: 11 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 22. East wind 6 to 8 mph.

    High: 22 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 13. East southeast wind 8 to 13 mph.

    Low: 13 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 27. Southeast wind 10 to 13 mph becoming southwest in the afternoon.

    High: 27 °F

    Partly Sunny

Detailed Forecast

Today
A chance of flurries before 10am. Patchy fog between 7am and 9am. Otherwise, mostly cloudy, with a temperature falling to around 5 by 5pm. West northwest wind 7 to 16 mph becoming north northeast in the morning. Winds could gust as high as 25 mph.
Tonight
Mostly cloudy, with a low around 0. North wind 6 to 11 mph becoming light and variable.
New Year's Day
Mostly sunny, with a high near 19. South wind 6 to 8 mph becoming west northwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around 9. Northwest wind around 6 mph.
Friday
Partly sunny, with a high near 17. North wind around 6 mph.
Friday Night
Mostly cloudy, with a low around 11. East wind around 6 mph becoming south southeast in the evening.
Saturday
Mostly cloudy, with a high near 22. East wind 6 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 13. East southeast wind 8 to 13 mph.
Sunday
Partly sunny, with a high near 27. Southeast wind 10 to 13 mph becoming southwest in the afternoon.
Sunday Night
Mostly cloudy, with a low around 20.
Monday
Partly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Partly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grenville SD
 45.46°N 97.37°W (Elev. 1795 ft)
Last Update:
5:36 am CST Dec 31, 2025
Forecast Valid:
6am CST Dec 31, 2025-6pm CST Jan 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation