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Critical Fire Weather in the High Plains; Heavy Rain and High Winds in Hawaii

Gusty winds and low relative humidity will bring widespread critical fire weather today across the central and southern High Plains. Heavy rain and thunderstorms may bring flooding to Hawaii through today. High winds across the islands may result in high surf, power outages, property damage, and difficult travel. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

37°F

3°C

Humidity 79%
Wind Speed NW 7 mph
Barometer 29.86 in (1012.7 mb)
Dewpoint 31°F (-1°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 9 Feb 5:56 pm CST
Extended Forecast for

Grenville SD

  • Tonight

    Tonight: A slight chance of rain before 9pm, then a chance of sprinkles and flurries between 9pm and 10pm. Mostly cloudy, with a low around 28. Northwest wind 6 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Rain/Flurries
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37. West northwest wind 10 to 17 mph, with gusts as high as 26 mph.

    High: 37 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23. West northwest wind 5 to 8 mph becoming south southeast after midnight.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 43. South wind 6 to 10 mph.

    High: 43 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of snow after midnight. Mostly cloudy, with a low around 30. South southeast wind around 10 mph. Chance of precipitation is 20%.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A slight chance of snow before noon. Mostly sunny, with a high near 42. Southeast wind 6 to 10 mph. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 27. East southeast wind around 7 mph becoming south after midnight.

    Low: 27 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 46. South wind 7 to 10 mph.

    High: 46 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 29. South southwest wind around 9 mph.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of rain before 9pm, then a chance of sprinkles and flurries between 9pm and 10pm. Mostly cloudy, with a low around 28. Northwest wind 6 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 37. West northwest wind 10 to 17 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 23. West northwest wind 5 to 8 mph becoming south southeast after midnight.
Wednesday
Mostly sunny, with a high near 43. South wind 6 to 10 mph.
Wednesday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around 30. South southeast wind around 10 mph. Chance of precipitation is 20%.
Thursday
A slight chance of snow before noon. Mostly sunny, with a high near 42. Southeast wind 6 to 10 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 27. East southeast wind around 7 mph becoming south after midnight.
Friday
Sunny, with a high near 46. South wind 7 to 10 mph.
Friday Night
Mostly clear, with a low around 29. South southwest wind around 9 mph.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Mostly cloudy, with a low around 31.
Washington's Birthday
A slight chance of rain and snow. Partly sunny, with a high near 45. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grenville SD
 45.46°N 97.37°W (Elev. 1795 ft)
Last Update:
5:36 pm CST Feb 9, 2026
Forecast Valid:
6pm CST Feb 9, 2026-6pm CST Feb 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation