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

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Partly Cloudy

46°F

8°C

Humidity 53%
Wind Speed SW 8 mph
Barometer 29.90 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 3 May 3:35 am CDT
Extended Forecast for

Oconomowoc WI

  • Overnight

    Overnight: A chance of sprinkles before 4am. Mostly cloudy, with a low around 41. Southwest wind around 10 mph.

    Low: 41 °F

    Chance
    Sprinkles

  • Sunday

    Sunday: A chance of sprinkles with a slight chance of showers before noon, then a chance of sprinkles after 2pm. Partly sunny, with a high near 66. Southwest wind around 15 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.

    High: 66 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43. West wind 5 to 10 mph becoming light in the evening.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny, with a high near 74. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 40%.

    High: 74 °F

    Sunny then
    Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 44. West wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 40%.

    Low: 44 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers. Mostly cloudy, with a high near 54. North wind 5 to 10 mph.

    High: 54 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Areas of frost after 4am. Otherwise, mostly cloudy, with a low around 35. Northwest wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Cloudy
    then Areas
    Frost

  • Wednesday

    Wednesday: Areas of frost before 8am. Otherwise, partly sunny, with a high near 56. Light northwest wind increasing to 5 to 10 mph in the morning.

    High: 56 °F

    Areas Frost
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of sprinkles before 4am. Mostly cloudy, with a low around 41. Southwest wind around 10 mph.
Sunday
A chance of sprinkles with a slight chance of showers before noon, then a chance of sprinkles after 2pm. Partly sunny, with a high near 66. Southwest wind around 15 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 43. West wind 5 to 10 mph becoming light in the evening.
Monday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny, with a high near 74. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 44. West wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 40%.
Tuesday
A 30 percent chance of showers. Mostly cloudy, with a high near 54. North wind 5 to 10 mph.
Tuesday Night
Areas of frost after 4am. Otherwise, mostly cloudy, with a low around 35. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Areas of frost before 8am. Otherwise, partly sunny, with a high near 56. Light northwest wind increasing to 5 to 10 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 57. Chance of precipitation is 30%.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 35.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 59.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 63.
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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:
2:36 am CDT May 3, 2026
Forecast Valid:
3am CDT May 3, 2026-6pm CDT May 9, 2026
 
Forecast Discussion
 
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Additional Resources

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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