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Siemer Lake, WI Weather Forecast
Siemer Lake, WI Weather Forecast Date: 937 AM CDT Wed Aug 19 2026
The area/counties/county of: Waupaca, including the cities of: New London, Waupaca, and Clintonville.or toggle through each period.
Today... Mostly sunny. Highs around 80. Light and variable wind.
Tonight... Mostly clear. Lows in the middle 50s. Light and variable wind.
Thursday... Mostly sunny. A slight chance of showers in the afternoon. Highs in the lower 80s. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of rain 20%.
Thursday Night... Mostly cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then showers likely and a chance of thunderstorms after midnight. Lows in the lower 60s. Southwest wind 5 to 10 mph. Chance of rain 70%.
Friday... Partly sunny with a chance of showers. Highs in the lower 80s. West wind 5 to 10 mph. Chance of rain 40%.
Friday Night... Mostly clear. Lows in the upper 50s. Highs around 80.
Saturday... Mostly clear. Lows in the upper 50s. Highs around 80.
Saturday Night... Clear. Lows in the middle 50s.
Sunday... Mostly clear. Highs in the upper 70s. Lows in the middle 50s.
Sunday Night... Mostly clear. Highs in the upper 70s. Lows in the middle 50s.
Monday... Partly cloudy. Highs around 80. Lows in the upper 50s.
Monday Night... Partly cloudy. Highs around 80. Lows in the upper 50s.
POP = Probability of Precipitation
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