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Sump Lake, WI 7-Day Night Weather Forecast
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Sump Lake, WI Weather Forecast
Sump Lake, WI Weather Forecast Date: 1247 PM CDT Thu Aug 20 2026
The area/counties/county of: Lincoln, including the cities of: Merrill and Tomahawk.or toggle through each period.
This Afternoon... Mostly cloudy. Nearly steady temperature in the mid 70s. Southwest wind 5 to 10 mph.
Tonight... Warmer. Showers likely and a chance of thunderstorms. Lows in the upper 50s. South wind 5 to 10 mph. Chance of rain 70%.
Friday... Mostly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs in the middle 70s. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of rain 20%.
Friday Night... Partly cloudy. Lows in the lower 50s. Light and variable wind.
Saturday... Mostly sunny. Highs in the middle 70s. Northwest wind 10 to 15 mph.
Saturday Night... Clear. Lows in the upper 40s. Highs in the middle 70s.
Sunday... Clear. Lows in the upper 40s. Highs in the middle 70s.
Sunday Night... Mostly clear. Lows in the upper 40s. Highs in the middle 70s.
Monday... Mostly clear. Lows in the upper 40s. Highs in the middle 70s.
Monday Night... Partly cloudy. Lows in the middle 50s.
Tuesday... Partly cloudy. A chance of showers. Highs in the upper 70s. Lows in the upper 50s. Chance of rain 40%.
Tuesday Night... Partly cloudy. A chance of showers. Highs in the upper 70s. Lows in the upper 50s. Chance of rain 40%.
POP = Probability of Precipitation
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