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

Flooding Possible in the Southwest U.S.; Coastal Storm to Impact the East

Heavy to excessive rainfall is expected today into Wednesday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. A strong coastal storm will develop off the Mid-Atlantic coast Wednesday, intensifying toward southern New England this weekend. Significant coastal flooding, strong rip currents, and beach erosion from high surf expected. Read More >

Hazardous Weather Conditions

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Fair

52°F

11°C

Humidity 100%
Wind Speed NE 5 mph
Barometer 30.38 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 23 Sep 5:15 am CDT
Extended Forecast for

Oconomowoc Lake WI

  • Today

    Today: Partly sunny, with a high near 64. East wind 5 to 10 mph.

    High: 64 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 51. Northeast wind around 5 mph.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65. East wind 5 to 10 mph.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 52. East wind around 5 mph becoming calm.

    Low: 52 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 66. Calm wind becoming east around 5 mph in the afternoon.

    High: 66 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48. East wind around 5 mph becoming calm.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 66. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 66 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 50. Southeast wind around 5 mph becoming calm.

    Low: 50 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 64. East wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 51. Northeast wind around 5 mph.
Thursday
Mostly sunny, with a high near 65. East wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 52. East wind around 5 mph becoming calm.
Friday
Partly sunny, with a high near 66. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 48. East wind around 5 mph becoming calm.
Saturday
Partly sunny, with a high near 66. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 50. Southeast wind around 5 mph becoming calm.
Sunday
Mostly cloudy, with a high near 66.
Sunday Night
Mostly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Oconomowoc Lake WI
 43.1°N 88.45°W (Elev. 860 ft)
Last Update:
2:36 am CDT Sep 23, 2026
Forecast Valid:
5am CDT Sep 23, 2026-6pm CDT Sep 29, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation