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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Current conditions at

Watertown (KRYV)

Lat: 43.17°NLon: 88.72°WElev: 814ft.

Overcast

14°F

-10°C

Humidity 78%
Wind Speed W 3 mph
Barometer 29.89 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Last update 1 Jan 9:10 pm CST
Extended Forecast for

Oconomowoc WI

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 7. West wind around 5 mph.

    Low: 7 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 19. Wind chill values between zero and 10. Northwest wind around 5 mph.

    High: 19 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 12. Northwest wind around 5 mph becoming calm.

    Low: 12 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 24. Calm wind becoming west around 5 mph.

    High: 24 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming clear, with a low around 9. West wind around 5 mph becoming calm.

    Low: 9 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Increasing clouds, with a high near 27. Calm wind becoming south around 5 mph in the afternoon.

    High: 27 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 21. South wind around 5 mph.

    Low: 21 °F

    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 38. South wind around 5 mph becoming calm in the afternoon.

    High: 38 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 7. West wind around 5 mph.
Friday
Sunny, with a high near 19. Wind chill values between zero and 10. Northwest wind around 5 mph.
Friday Night
Mostly cloudy, with a low around 12. Northwest wind around 5 mph becoming calm.
Saturday
Mostly cloudy, with a high near 24. Calm wind becoming west around 5 mph.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 9. West wind around 5 mph becoming calm.
Sunday
Increasing clouds, with a high near 27. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 21. South wind around 5 mph.
Monday
Partly sunny, with a high near 38. South wind around 5 mph becoming calm in the afternoon.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Mostly cloudy, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 25.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
A 20 percent chance of rain. Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Oconomowoc WI
 43.11°N 88.51°W (Elev. 860 ft)
Last Update:
8:48 pm CST Jan 1, 2026
Forecast Valid:
9pm CST Jan 1, 2026-6pm CST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation