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

Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

46°F

8°C

Humidity 37%
Wind Speed NW 20 G 26 mph
Barometer 29.88 in (1012.3 mb)
Dewpoint 21°F (-6°C)
Visibility NA
Wind Chill38°F (3°C)
Last update 15 Nov 1:56 pm CST
Extended Forecast for

Grenville SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 24 mph.

    High: 47 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. Northwest wind 3 to 8 mph.

    Low: 30 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 46. Light and variable wind becoming south around 6 mph in the morning.

    High: 46 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33. East southeast wind 7 to 13 mph.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of rain after noon. Mostly cloudy, with a high near 42. East southeast wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

    High: 42 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: A chance of rain before 9pm, then a chance of rain and snow. Cloudy, with a low around 32. East southeast wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 32 °F

    Chance
    Rain/Snow

  • Tuesday

    Tuesday: A slight chance of rain and snow before noon. Mostly cloudy, with a high near 38. East wind 7 to 10 mph. Chance of precipitation is 20%.

    High: 38 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31. Southeast wind around 7 mph.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 43. South southeast wind 6 to 8 mph.

    High: 43 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, with a low around 30. Northwest wind 3 to 8 mph.
Sunday
Mostly sunny, with a high near 46. Light and variable wind becoming south around 6 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 33. East southeast wind 7 to 13 mph.
Monday
A slight chance of rain after noon. Mostly cloudy, with a high near 42. East southeast wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Monday Night
A chance of rain before 9pm, then a chance of rain and snow. Cloudy, with a low around 32. East southeast wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Tuesday
A slight chance of rain and snow before noon. Mostly cloudy, with a high near 38. East wind 7 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 31. Southeast wind around 7 mph.
Wednesday
Mostly cloudy, with a high near 43. South southeast wind 6 to 8 mph.
Wednesday Night
A chance of rain, mainly after midnight. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Thursday
A slight chance of rain. Partly sunny, with a high near 41. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 29.
Friday
Partly sunny, with a high near 38.
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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:
2:21 pm CST Nov 15, 2025
Forecast Valid:
2pm CST Nov 15, 2025-6pm CST Nov 21, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation