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

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Willow Lake SD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 39. South southeast wind 3 to 6 mph.

    High: 39 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog between 10pm and 2am. Otherwise, mostly cloudy, with a low around 33. South southeast wind 8 to 14 mph.

    Low: 33 °F

    Patchy Fog

  • Saturday

    Saturday: Mostly sunny, with a high near 45. South wind 6 to 13 mph becoming west southwest in the afternoon.

    High: 45 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of snow after midnight. Mostly cloudy, with a low around 11. Blustery, with a west wind 7 to 12 mph becoming north northwest 18 to 28 mph in the evening. Winds could gust as high as 40 mph. Chance of precipitation is 30%.

    Low: 11 °F

    Mostly Cloudy
    then Chance
    Snow and
    Blustery

  • Sunday

    Sunday: A chance of snow before noon. Mostly cloudy, with a high near 17. Windy, with a northwest wind 26 to 30 mph, with gusts as high as 43 mph. Chance of precipitation is 30%.

    High: 17 °F

    Chance Snow
    and Blustery
    then Mostly
    Cloudy and
    Windy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 0. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 38 mph.

    Low: 0 °F

    Mostly Cloudy
    and Blustery

  • Monday

    Monday: Mostly sunny, with a high near 13. Blustery, with a northwest wind 16 to 21 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 13 °F

    Mostly Sunny
    and Blustery
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 8. Southwest wind 8 to 10 mph.

    Low: 8 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 35. West southwest wind 10 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 35 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 39. South southeast wind 3 to 6 mph.
Tonight
Patchy fog between 10pm and 2am. Otherwise, mostly cloudy, with a low around 33. South southeast wind 8 to 14 mph.
Saturday
Mostly sunny, with a high near 45. South wind 6 to 13 mph becoming west southwest in the afternoon.
Saturday Night
A chance of snow after midnight. Mostly cloudy, with a low around 11. Blustery, with a west wind 7 to 12 mph becoming north northwest 18 to 28 mph in the evening. Winds could gust as high as 40 mph. Chance of precipitation is 30%.
Sunday
A chance of snow before noon. Mostly cloudy, with a high near 17. Windy, with a northwest wind 26 to 30 mph, with gusts as high as 43 mph. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 0. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 38 mph.
Monday
Mostly sunny, with a high near 13. Blustery, with a northwest wind 16 to 21 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 30 mph.
Monday Night
Partly cloudy, with a low around 8. Southwest wind 8 to 10 mph.
Tuesday
Partly sunny, with a high near 35. West southwest wind 10 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around 11. Chance of precipitation is 20%.
Wednesday
A chance of snow. Mostly cloudy, with a high near 18. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around -3.
New Year's Day
Mostly sunny and cold, with a high near 10.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Willow Lake SD
 44.62°N 97.65°W (Elev. 1762 ft)
Last Update:
2:37 pm CST Dec 26, 2025
Forecast Valid:
2pm CST Dec 26, 2025-6pm CST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

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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