Pacific Storm System Moves Inland; Strong Storm in Alaska

A Pacific storm system will bring low elevation/valley rain and mountain snow as it moves inland to the central Great Basin through the central Rockies through Thursday. Scattered thunderstorms are likely from California into the Great Basin. A large low pressure system continues to bring snow, blizzard conditions, damaging winds, and mixed precipitation along the Bering Sea and Southwest Alaska. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

37°F

3°C

Humidity 59%
Wind Speed S 3 mph
Barometer 30.20 in (1024.4 mb)
Dewpoint 24°F (-4°C)
Visibility NA
Last update 11 Feb 9:56 am CST
Extended Forecast for

Grenville SD

  • Today

    Today: Sunny, with a high near 45. Light and variable wind becoming west southwest around 6 mph in the afternoon.

    High: 45 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 29. South southeast wind around 7 mph.

    Low: 29 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 47. South wind around 6 mph becoming west southwest in the afternoon.

    High: 47 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. Southwest wind around 6 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 50. Southwest wind 6 to 10 mph.

    High: 50 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. South southwest wind 7 to 9 mph.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 50. West wind 7 to 10 mph.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31. West wind around 8 mph.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 53. West southwest wind 7 to 10 mph becoming south southeast in the afternoon.

    High: 53 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 45. Light and variable wind becoming west southwest around 6 mph in the afternoon.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 29. South southeast wind around 7 mph.
Thursday
Sunny, with a high near 47. South wind around 6 mph becoming west southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 29. Southwest wind around 6 mph.
Friday
Sunny, with a high near 50. Southwest wind 6 to 10 mph.
Friday Night
Mostly clear, with a low around 32. South southwest wind 7 to 9 mph.
Saturday
Mostly sunny, with a high near 50. West wind 7 to 10 mph.
Saturday Night
Partly cloudy, with a low around 31. West wind around 8 mph.
Sunday
Partly sunny, with a high near 53. West southwest wind 7 to 10 mph becoming south southeast in the afternoon.
Sunday Night
Mostly cloudy, with a low around 35.
Washington's Birthday
Mostly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
A chance of rain. Mostly cloudy, with a high near 50. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Grenville SD
 45.46°N 97.37°W (Elev. 1795 ft)
9:46 am CST Feb 11, 2026
10am CST Feb 11, 2026-6pm CST Feb 17, 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