Weather in Oconomowoc, WI
Updated 2026-09-26 09:00 local time · ZIP codes 53066
Cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
54°17% rain
58°16% rain61°14% rain63°10% rain64°12% rain64°12% rain63°12% rain62°14% rain60°16% rain60°18% rain
56°21% rain54°23% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 23%).
It feels like 51°F with winds near 7 mph.
64°F, 12% rain chance and 8 mph wind.
Visibility is around 6 mi; gusts may reach 13 mph.
Current temperature is 54°F, wind 7 mph, rain chance up to 23%.
UV index is 1.
Local weather characteristics in Oconomowoc
Wisconsin has warm summers, cold winters and strong Great Lakes influence near Lakes Michigan and Superior. Lake-effect snow can be important in favored areas.
Oconomowoc is part of the Midwest weather region. The forecast point is near 43.11°N latitude and 88.50°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Oconomowoc weather today
Cloudy and 54°F in Oconomowoc, WI. Today's high is 64°F with a 15% rain chance. Winds are around 7 mph with gusts near 13 mph. Relative humidity is 73%, pressure is 30.24 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Oconomowoc
Sunrise is at 06:45 AM and sunset is at 06:44 PM. Tomorrow's forecast calls for Overcast with a high near 68°F and a low near 50°F. The maximum rain chance is 10%.