Upper Oconomowoc Lake, WI 7-Day Weather Forecast
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Upper Oconomowoc Lake Weather Forecast


Upper Oconomowoc Lake, WI Weather Forecast Date: 430 PM CDT Tue Aug 18 2026
Weather forecast for Upper Oconomowoc Lake, WI
| Late Today Lo: 61°F Lo: 16°C |
Late This Afternoon... Showers with thunderstorms likely. Some thunderstorms May be severe with damaging winds and large hail. Southwest winds 5 to 15 mph. Chance of precipitation 90%. |
| Wed Hi: 79°FHi: 26°C Lo: 55°F Lo: 13°C |
Wednesday... Sunny. Highs in the upper 70s. North winds up to 5 mph. |
| Thu Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Thursday... Sunny. Highs in the lower 80s. Southwest winds up to 10 mph. |
| Fri Hi: 80°FHi: 27°C Lo: 61°F Lo: 16°C |
Friday... Partly sunny. Chance of light showers in the morning, then chance of light showers and thunderstorms in the afternoon. Highs around 80. Chance of precipitation 50%. |
| Sat Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Saturday... Mostly sunny. A 20% chance of light showers and thunderstorms in the afternoon. Highs in the upper 70s. |
| Sun Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Sunday... Sunny. Highs in the upper 70s. |
| Mon Hi: 79°FHi: 26°C Lo: 60°F Lo: 16°C |
Monday... Partly sunny with a 20% chance of light rain showers. Highs in the upper 70s. |
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