Weather WorldBlackhawk Island, WI 7-Day Night Weather Forecast
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Blackhawk Island, WI Weather Forecast
Blackhawk Island, WI Weather Forecast Date: 1030 AM CDT Fri Sep 11 2026
The area/counties/county of: Jefferson, including the cities of: Watertown, Fort Atkinson, and Jefferson.or toggle through each period.
Rest of Today... Sunny. Highs around 80. South winds 5 to 10 mph.
Tonight... Partly cloudy. Lows in the lower 60s. South winds 5 to 10 mph.
Saturday... Partly sunny. Highs in the lower 80s. West winds 5 to 15 mph.
Saturday Night... Mostly clear. Lows in the mid 50s. Northwest winds up to 10 mph.
Sunday... Partly sunny. A 20% chance of light rain showers in the afternoon. Highs in the mid 70s. North winds up to 10 mph.
Sunday Night... Partly cloudy. Chance of light rain showers through around midnight, then chance of light rain showers and slight chance of thunderstorms after midnight. Lows in the lower 50s. Chance of precipitation 40%.
Monday... Rain showers likely and chance of thunderstorms. Highs in the upper 70s. Chance of precipitation 70%.
Monday Night... Showers and chance of thunderstorms. Breezy. Lows in the lower 60s. Chance of precipitation 80%.
Tuesday... Mostly cloudy with chance of light showers and slight chance of thunderstorms. Highs in the mid 70s. Chance of precipitation 50%.
Tuesday Night... Mostly cloudy through around midnight then becoming partly cloudy. Chance of light rain showers and slight chance of thunderstorms. Lows in the lower 50s. Chance of precipitation 40%.
Wednesday... Mostly cloudy with a 40% chance of light rain showers. Highs in the lower 70s.
Wednesday Night... Mostly cloudy. Chance of rain showers through around midnight, then chance of light rain showers and slight chance of thunderstorms after midnight. Lows in the mid 50s. Chance of precipitation 50%.
POP = Probability of Precipitation
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