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South Beloit, IL 7-Day Night Weather Forecast
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South Beloit, IL Weather Forecast
South Beloit, IL Weather Forecast Date: 121 PM CDT Tue Sep 15 2026
The area/counties/county of: Winnebago, including the city of Rockford.or toggle through each period.
This Afternoon... Mostly cloudy. Isolated showers and thunderstorms early in the afternoon. Near steady temperature in the mid 70s. West winds 5 to 10 mph. Chance of precipitation 20%.
Tonight... Mostly cloudy. Isolated showers and thunderstorms. Lows in the upper 50s. North winds 5 to 10 mph, becoming northeast after midnight. Chance of precipitation 20%.
Wednesday... Mostly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms early in the afternoon. A slight chance of showers and thunderstorms late. Highs in the lower 70s. Northeast winds 5 to 10 mph. Chance of precipitation 30%.
Wednesday Night... Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the lower 60s. East winds 5 to 10 mph. Chance of precipitation 40%.
Thursday... Cloudy. A chance of showers and thunderstorms in the morning. Highs in the mid 70s. North winds around 5 mph. Chance of precipitation 40%.
Thursday Night... Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Lows around 60. Chance of precipitation 20%.
Friday... Showers likely with a chance of thunderstorms. Highs in the mid 70s. Chance of precipitation 70%.
Friday Night... Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows in the lower 60s. Chance of precipitation 80%.
Saturday... Showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs around 80. Chance of precipitation 80%.
Saturday Night... A chance of thunderstorms in the evening. Showers likely. Lows in the lower 60s. Chance of precipitation 60%.
Sunday... Mostly cloudy with a 50% chance of showers. Highs in the lower 70s.
Sunday Night... Mostly cloudy with a 40% chance of showers. Lows in the upper 50s.
POP = Probability of Precipitation
South Beloit Radar Loop
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