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

Significant Coastal Impacts to the Mid-Atlantic and Northeast; Tropical Storm Nolo to Impact Hawaii

A strong coastal storm will bring moderate to major coastal flooding, strong winds, heavy rainfall and high surf to the Mid-Atlantic and New England. Tropical Storm Nolo is expected to strengthen into a hurricane Thursday as it moves north toward the Big Island of Hawaii. Heavy rainfall will continue through Saturday, with locally catastrophic flooding possible. Hurricane Watch in effect. Read More >

Hazardous Weather Conditions

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Fair

54°F

12°C

Humidity 94%
Wind Speed NW 5 mph
Barometer 30.39 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 23 Sep 11:15 pm CDT
Extended Forecast for

Oconomowoc WI

  • Tonight

    Tonight: Partly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66. Calm wind becoming east around 5 mph in the morning.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 55. East wind around 5 mph becoming calm.

    Low: 55 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 67. Calm wind becoming east around 5 mph in the afternoon.

    High: 67 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49. East wind around 5 mph becoming calm.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 67. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 49. East wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 68. Calm wind.

    High: 68 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 51. Calm wind.
Thursday
Mostly sunny, with a high near 66. Calm wind becoming east around 5 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 55. East wind around 5 mph becoming calm.
Friday
Partly sunny, with a high near 67. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 49. East wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 67. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 49. East wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 68. Calm wind.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 70.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Oconomowoc WI
 43.11°N 88.51°W (Elev. 860 ft)
Last Update:
11:01 pm CDT Sep 23, 2026
Forecast Valid:
11pm CDT Sep 23, 2026-6pm CDT Sep 30, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation