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City of Jefferson, WIJefferson, WI 7-Day Night Weather Forecast
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Jefferson, WI Weather Forecast
Jefferson, WI Weather Forecast Date: 731 PM CDT Fri Sep 25 2026
The area/counties/county of: Jefferson, including the cities of: Watertown, Fort Atkinson, and Jefferson.or toggle through each period.
Tonight... Mostly clear. Lows in the upper 40s. East winds up to 5 mph.
Saturday... Mostly sunny. Highs in the upper 60s. Southeast winds up to 10 mph.
Saturday Night... Partly cloudy through around midnight then becoming mostly cloudy. Lows in the upper 40s. East winds up to 5 mph through around midnight becoming calm.
Sunday... Partly sunny. Highs in the upper 60s. Calm winds.
Sunday Night... Partly cloudy. Lows in the upper 40s. Calm winds.
Monday... Sunny. Highs around 70.
Monday Night... Mostly clear. Lows in the upper 40s.
Tuesday... Mostly sunny in the morning, then mostly cloudy with a 30% chance of light rain showers in the afternoon. Highs around 70.
Tuesday Night... Mostly cloudy. Chance of light rain showers through around midnight, then rain showers likely and slight chance of thunderstorms after midnight. Lows in the upper 50s. Chance of precipitation 60%.
Wednesday... Light rain showers likely. Highs in the upper 60s. Chance of showers 60%.
Wednesday Night... Mostly cloudy with light rain showers likely. Lows in the upper 50s. Chance of showers 60%.
Thursday... Mostly cloudy with a 40% chance of light rain showers. Highs in the upper 60s.
Thursday Night... Mostly cloudy with a 40% chance of light rain showers. Lows in the lower 50s.
POP = Probability of Precipitation
Jefferson Radar Loop
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