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

Hazardous Weather Conditions

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Fair

59°F

15°C

Humidity 100%
Wind Speed Calm
Barometer 29.90 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 25 Jun 2:10 am CDT
Extended Forecast for

Oconomowoc Lake WI

  • Overnight

    Overnight: Patchy fog. Otherwise, partly cloudy, with a low around 58. Calm wind becoming west around 5 mph.

    Low: 58 °F

    Patchy Fog

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 75. Northwest wind around 5 mph.

    High: 75 °F

    Patchy Fog
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 53. North wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 73. East wind 5 to 10 mph.

    High: 73 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55. East wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 79. East wind 5 to 10 mph.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60. East wind around 5 mph.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 86. Southeast wind 5 to 15 mph.

    High: 86 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, partly cloudy, with a low around 58. Calm wind becoming west around 5 mph.
Thursday
A 30 percent chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 75. Northwest wind around 5 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 53. North wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 73. East wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 55. East wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 79. East wind 5 to 10 mph.
Saturday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60. East wind around 5 mph.
Sunday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 86. Southeast wind 5 to 15 mph.
Sunday Night
Partly cloudy, with a low around 72.
Monday
Mostly sunny and hot, with a high near 94.
Monday Night
Partly cloudy, with a low around 74.
Tuesday
Mostly sunny and hot, with a high near 95.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 94.
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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:
2:37 am CDT Jun 25, 2026
Forecast Valid:
2am CDT Jun 25, 2026-6pm CDT Jul 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation