Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

Overcast

14°F

-10°C

Humidity 85%
Wind Speed E 8 mph
Barometer 30.09 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill3°F (-16°C)
Last update 7 Dec 6:36 pm CST
Extended Forecast for

Tolstoy SD

High Wind Watch December 9, 03:00pm until December 10, 03:00am
Click here for hazard details and duration
High Wind Watch
  • Tonight

    Tonight: A chance of snow before 9pm.  Mostly cloudy, with a temperature rising to around 11 by 5am. East southeast wind 6 to 14 mph becoming south southwest after midnight.  Chance of precipitation is 30%.

    Low: 4 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Patchy blowing snow between noon and 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 37. Breezy, with a south wind 7 to 12 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 37 °F

    Mostly Cloudy
    then Patchy
    Blowing Snow
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25. West wind 11 to 18 mph, with gusts as high as 28 mph.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain, mainly before noon.  Mostly cloudy, with a high near 44. Windy, with a southwest wind 13 to 23 mph becoming west northwest 23 to 33 mph in the afternoon. Winds could gust as high as 55 mph.  Chance of precipitation is 50%.

    High: 44 °F

    Chance Rain
    and Breezy
    then Slight
    Chance Rain
    and Windy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 14. Windy, with a northwest wind 29 to 34 mph decreasing to 20 to 25 mph after midnight. Winds could gust as high as 55 mph.

    Low: 14 °F

    Mostly Cloudy
    and Windy

  • Wednesday

    Wednesday: Partly sunny, with a high near 21. North northwest wind 10 to 17 mph becoming east in the afternoon. Winds could gust as high as 26 mph.

    High: 21 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Snow likely, mainly after midnight.  Cloudy, with a low around 7. East wind 10 to 14 mph.  Chance of precipitation is 60%.

    Low: 7 °F

    Snow Likely

  • Thursday

    Thursday: A chance of snow, mainly before noon.  Mostly cloudy, with a high near 18. Northeast wind 14 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph.  Chance of precipitation is 40%.

    High: 18 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A slight chance of snow.  Mostly cloudy, with a low around -7. Northwest wind 16 to 18 mph, with gusts as high as 26 mph.  Chance of precipitation is 20%.

    Low: -7 °F

    Slight Chance
    Snow

Detailed Forecast

Tonight
A chance of snow before 9pm. Mostly cloudy, with a temperature rising to around 11 by 5am. East southeast wind 6 to 14 mph becoming south southwest after midnight. Chance of precipitation is 30%.
Monday
Patchy blowing snow between noon and 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 37. Breezy, with a south wind 7 to 12 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph.
Monday Night
Mostly cloudy, with a low around 25. West wind 11 to 18 mph, with gusts as high as 28 mph.
Tuesday
A chance of rain, mainly before noon. Mostly cloudy, with a high near 44. Windy, with a southwest wind 13 to 23 mph becoming west northwest 23 to 33 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 50%.
Tuesday Night
Mostly cloudy, with a low around 14. Windy, with a northwest wind 29 to 34 mph decreasing to 20 to 25 mph after midnight. Winds could gust as high as 55 mph.
Wednesday
Partly sunny, with a high near 21. North northwest wind 10 to 17 mph becoming east in the afternoon. Winds could gust as high as 26 mph.
Wednesday Night
Snow likely, mainly after midnight. Cloudy, with a low around 7. East wind 10 to 14 mph. Chance of precipitation is 60%.
Thursday
A chance of snow, mainly before noon. Mostly cloudy, with a high near 18. Northeast wind 14 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 40%.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around -7. Northwest wind 16 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Friday
Partly sunny and cold, with a high near 1. Blustery.
Friday Night
A slight chance of snow. Mostly cloudy, with a low around -10. Chance of precipitation is 20%.
Saturday
A slight chance of snow. Mostly cloudy and cold, with a high near 5. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around -8.
Sunday
Partly sunny, with a high near 16.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Tolstoy SD
 45.21°N 99.61°W (Elev. 1900 ft)
6:36 pm CST Dec 7, 2025
6pm CST Dec 7, 2025-6pm CST Dec 14, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database