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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

East Troy Municipal Airport (K57C)

Lat: 42.8°NLon: 88.37°WElev: 860ft.

Overcast

14°F

-10°C

Humidity 75%
Wind Speed W 3 mph
Barometer 29.89 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Last update 1 Jan 6:55 pm CST
Extended Forecast for

2 Miles W Potter Lake WI

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 8. Calm wind becoming west around 5 mph after midnight.

    Low: 8 °F

    Gradual
    Clearing

  • Friday

    Friday: Sunny, with a high near 20. Wind chill values between zero and 10. Northwest wind 5 to 10 mph.

    High: 20 °F

    Sunny

  • Friday Night

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

    Low: 12 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 25. Calm wind becoming west around 5 mph.

    High: 25 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 9. West wind around 5 mph becoming calm.

    Low: 9 °F

    Partly Cloudy

  • 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. Cloudy, then gradually becoming partly cloudy, with a low around 21. South wind around 5 mph.

    Low: 21 °F

    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 39. Southwest wind around 5 mph becoming calm in the afternoon.

    High: 39 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy during the early evening, then gradual clearing, with a low around 8. Calm wind becoming west around 5 mph after midnight.
Friday
Sunny, with a high near 20. Wind chill values between zero and 10. Northwest wind 5 to 10 mph.
Friday Night
Mostly cloudy, with a low around 12. West wind around 5 mph becoming calm.
Saturday
Mostly cloudy, with a high near 25. Calm wind becoming west around 5 mph.
Saturday Night
Partly cloudy, 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. Cloudy, then gradually becoming partly cloudy, with a low around 21. South wind around 5 mph.
Monday
Partly sunny, with a high near 39. Southwest wind around 5 mph becoming calm in the afternoon.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
Mostly cloudy, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
Mostly sunny, with a high near 40.
Wednesday Night
Partly cloudy, with a low around 29.
Thursday
A 20 percent chance of rain. Partly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Potter Lake WI
 42.82°N 88.38°W (Elev. 823 ft)
Last Update:
6:52 pm CST Jan 1, 2026
Forecast Valid:
7pm CST Jan 1, 2026-6pm CST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation