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Summit, WI Weather Forecast
Summit, WI Weather Forecast Date: 123 PM CDT Thu Oct 22 2026
The area/counties/county of: Lincoln, including the cities of: Merrill and Tomahawk.or toggle through each period.
This Afternoon... Sunny. Nearly steady temperature in the upper 60s. Light and variable wind.
Tonight... Warmer. Clear in the evening then becoming mostly cloudy. Lows around 50. Light and variable wind.
Friday... Partly cloudy. Highs in the lower 70s. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Friday Night... Mostly cloudy. Lows in the middle 50s. South wind 5 to 10 mph.
Saturday... Partly sunny. Highs around 70. South wind 10 to 15 mph.
Saturday Night... Mostly cloudy. Lows in the lower 50s. Highs in the lower 60s.
Sunday... Mostly cloudy. Lows in the lower 50s. Highs in the lower 60s.
Sunday Night... Cooler. Mostly cloudy. Lows in the lower 40s. Highs in the lower 50s.
Monday... Cooler. Mostly cloudy. Lows in the lower 40s. Highs in the lower 50s.
Monday Night... Mostly cloudy. Lows in the middle 30s. Highs in the lower 50s.
Tuesday... Mostly cloudy. Lows in the middle 30s. Highs in the lower 50s.
POP = Probability of Precipitation
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