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

Unsettled Weather in the Eastern U.S. through Memorial Day

Showers and thunderstorms are expected from Texas to the Northeast through Tuesday. Heavy rain will create mainly localized areas of flash flooding across the central Gulf Coast into the Appalachians. Elevated to Critical fire weather conditions due to gusty winds and low humidity are expected through Tuesday across Oregon and Nevada. Showers and thunderstorms will develop over the Northwest. Read More >

Hazardous Weather Conditions

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Overcast

75°F

24°C

Humidity 44%
Wind Speed S 8 mph
Barometer 30.11 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 25 May 12:45 pm CDT
Extended Forecast for

Oconomowoc Lake WI

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 82. Southwest wind 5 to 10 mph.

    High: 82 °F

    Mostly Sunny

  • Tonight

    Tonight: Clear, with a low around 59. Southwest wind around 5 mph.

    Low: 59 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. Southwest wind 5 to 10 mph.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60. Southwest wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Light and variable wind becoming northeast 5 to 10 mph in the afternoon.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 51. Northeast wind around 10 mph.

    Low: 51 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 73. Northeast wind 5 to 10 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48. East wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

Memorial Day
Mostly sunny, with a high near 82. Southwest wind 5 to 10 mph.
Tonight
Clear, with a low around 59. Southwest wind around 5 mph.
Tuesday
Sunny, with a high near 87. Southwest wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 60. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Light and variable wind becoming northeast 5 to 10 mph in the afternoon.
Wednesday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 51. Northeast wind around 10 mph.
Thursday
Sunny, with a high near 73. Northeast wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 48. East wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 52.
Saturday
Sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Oconomowoc Lake WI
 43.1°N 88.45°W (Elev. 860 ft)
Last Update:
1:21 pm CDT May 25, 2026
Forecast Valid:
1pm CDT May 25, 2026-6pm CDT May 31, 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