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Upper Oconomowoc Lake, WI 7-Day Night Weather Forecast
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Upper Oconomowoc Lake, WI Weather Forecast
Upper Oconomowoc Lake, WI Weather Forecast Date: 131 AM CDT Tue Aug 11 2026
The area/counties/county of: Waukesha, including the cities of: Waukesha, Brookfield, New Berlin, Menomonee Falls, and Muskego.or toggle through each period.
Rest of Tonight... Mostly cloudy. A 20% chance of light showers and thunderstorms early in the morning. Near steady temperature in the upper 60s. Calm winds.
Tuesday... Cloudy until late afternoon then becoming partly sunny. Showers with thunderstorms likely in the morning, then chance of light showers and thunderstorms in the afternoon. Highs around 80. South winds up to 5 mph. Chance of precipitation 90%.
Tuesday Night... Partly cloudy until early morning then becoming mostly cloudy. Patchy fog after midnight. Lows in the mid 60s. Southeast winds up to 5 mph through around midnight becoming calm.
Wednesday... Mostly cloudy. Patchy fog in the morning. Chance of light showers and slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds up to 5 mph shifting to the north in the afternoon. Chance of precipitation 30%.
Wednesday Night... Partly cloudy. Lows in the mid 60s. Northeast winds up to 5 mph through around midnight becoming calm.
Thursday... Mostly cloudy with chance of light showers and slight chance of thunderstorms. Highs around 80. Chance of precipitation 30%.
Thursday Night... Partly cloudy. Lows in the lower 60s.
Friday... Partly sunny. Highs in the mid 70s.
Friday Night... Partly cloudy through around midnight then becoming mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the lower 60s. Chance of precipitation 50%.
Saturday... Mostly cloudy. Showers likely and chance of thunderstorms in the morning, then chance of light showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of precipitation 70%.
Saturday Night... Showers likely and chance of thunderstorms. Lows in the mid 60s. Chance of precipitation 70%.
Sunday... Mostly cloudy. Chance of light showers and slight chance of thunderstorms in the morning, then slight chance of light showers in the afternoon. Highs in the upper 70s. Chance of precipitation 30%.
Sunday Night... Mostly cloudy with a 20% chance of light showers through around midnight, then partly cloudy after midnight. Lows in the lower 60s.
POP = Probability of Precipitation
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