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Town of Sullivan, WISullivan, WI 7-Day Night Weather Forecast
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Sullivan, WI Weather Forecast
Sullivan, WI Weather Forecast Date: 331 PM CST Thu Nov 05 2026
The area/counties/county of: Jefferson, including the cities of: Watertown, Fort Atkinson, and Jefferson.or toggle through each period.
Late This Afternoon... Cloudy with scattered light rain showers. North winds 10 to 15 mph. Chance of showers 40%.
Tonight... Colder. Mostly cloudy. Lows in the mid 30s. North winds 10 to 15 mph.
Friday... Partly sunny. Highs in the upper 40s. North winds 10 to 15 mph.
Friday Night... Mostly clear. Lows in the mid 20s. Northwest winds up to 5 mph.
Saturday... Sunny. Highs in the lower 50s. Northwest winds up to 5 mph.
Saturday Night... Mostly clear. Lows in the lower 30s. West winds up to 5 mph.
Sunday... Sunny. Highs in the upper 50s.
Sunday Night... Clear. Lows in the lower 30s.
Monday... Sunny. Highs in the lower 60s.
Monday Night... Partly cloudy through around midnight then clearing. Lows in the upper 30s.
Tuesday... Sunny. Highs around 60.
Tuesday Night... Mostly clear. Lows in the mid 30s.
Veterans Day... Mostly sunny. A 20% chance of light rain in the afternoon. Highs in the mid 50s.
Wednesday Night... Partly cloudy. A 20% chance of light rain through around midnight. Lows in the mid 30s.
POP = Probability of Precipitation
Sullivan Radar Loop
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