Cold Temperatures for the Eastern U.S.; Lake Effect Snow in the Great Lakes; Heavy Rain in the Pacific Northwest

Cold temperatures will continue across much of the eastern U.S. into today. Heavy lake effect snow continues into today east of Lakes Erie and Ontario. Two Pacific cold fronts will cross the Pacific Northwest early this week followed by another atmospheric river. Heavy rain and gusty winds are expected through midweek, with the potential for renewed urban and river flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Fair

18°F

-8°C

Humidity 68%
Wind Speed SW 12 mph
Barometer 30.05 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 15 Dec 4:45 pm CST
Extended Forecast for

Oconomowoc Lake WI

  • Tonight

    Tonight: Patchy fog between 2am and 5am.  Otherwise, mostly cloudy, with a low around 9. Calm wind becoming south around 5 mph.

    Low: 9 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Partly sunny, with a high near 35. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 35 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 25. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 25 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 35. West wind 5 to 10 mph becoming south in the afternoon.

    High: 35 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers after midnight.  Mostly cloudy, with a temperature rising to around 37 by 5am. South wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Rain showers before noon, then a chance of rain and snow showers.  High near 41. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Showers then
    Chance
    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight.  Mostly cloudy, with a low around 6. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 6 °F

    Slight Chance
    Snow and
    Breezy then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 24. Northwest wind around 5 mph becoming south in the afternoon.

    High: 24 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog between 2am and 5am. Otherwise, mostly cloudy, with a low around 9. Calm wind becoming south around 5 mph.
Tuesday
Partly sunny, with a high near 35. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 25. West wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 35. West wind 5 to 10 mph becoming south in the afternoon.
Wednesday Night
A 50 percent chance of showers after midnight. Mostly cloudy, with a temperature rising to around 37 by 5am. South wind 10 to 15 mph, with gusts as high as 30 mph.
Thursday
Rain showers before noon, then a chance of rain and snow showers. High near 41. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 6. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Friday
Partly sunny, with a high near 24. Northwest wind around 5 mph becoming south in the afternoon.
Friday Night
Mostly cloudy, with a low around 15.
Saturday
Partly sunny, with a high near 36.
Saturday Night
Partly cloudy, with a low around 13.
Sunday
Mostly sunny, with a high near 27.
Sunday Night
Mostly cloudy, with a low around 17.
Monday
Partly sunny, with a high near 33.
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ABOUT THIS FORECAST

 
Point Forecast:
Oconomowoc Lake WI
 43.1°N 88.45°W (Elev. 860 ft)
5:02 pm CST Dec 15, 2025
5pm CST Dec 15, 2025-6pm CST Dec 22, 2025
 
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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