Weather World
Upper Oconomowoc Lake, WI 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Upper Oconomowoc Lake, WI Weather Forecast
Upper Oconomowoc Lake, WI Weather Forecast Date: 1031 PM CDT Wed Sep 30 2026
The area/counties/county of: Waukesha, including the cities of: Waukesha, Brookfield, New Berlin, Menomonee Falls, and Muskego.or toggle through each period.
Tonight... Areas of fog through the night. Scattered light showers in the evening. Showers in the late evening and overnight. Slight chance of thunderstorms after midnight. Near steady temperature in the lower 60s. Southwest winds up to 10 mph. Chance of precipitation near 100%.
Thursday... Areas of fog until late afternoon. Slight chance of thunderstorms in the morning. Showers until late afternoon, then scattered light showers late in the afternoon. Near steady temperature in the mid 60s. Northwest winds up to 10 mph. Chance of precipitation near 100%.
Thursday Night... Cooler. Cloudy with isolated light rain showers in the evening, then partly cloudy in the late evening and overnight. Lows in the upper 40s. North winds 5 to 10 mph. Chance of showers 20%.
Friday... Sunny. Highs in the lower 60s. North winds 5 to 10 mph.
Friday Night... Clear. Lows in the lower 40s. North winds up to 5 mph through around midnight becoming calm.
Saturday... Sunny. Highs in the lower 60s.
Saturday Night... Partly cloudy. Lows in the mid 40s.
Sunday... Sunny. Highs in the upper 60s.
Sunday Night... Mostly clear. Lows in the lower 40s.
Monday... Sunny. Highs around 60.
Monday Night... Clear. Lows around 40.
Tuesday... Sunny. Highs in the lower 60s.
Tuesday Night... Partly cloudy. A 20% chance of light rain showers after midnight. Lows around 50.
POP = Probability of Precipitation
Upper Oconomowoc Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...