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Bonus, IL 7-Day Night Weather Forecast
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Bonus, IL Weather Forecast
Bonus, IL Weather Forecast Date: 801 PM CDT Tue Sep 08 2026
The area/counties/county of: Boone, including the city of Belvidere.or toggle through each period.
Tonight... Mostly cloudy. Scattered sprinkles in the evening. A slight chance of thunderstorms. Showers after midnight. Lows around 70. Southwest winds 5 to 10 mph. Chance of precipitation 90%.
Wednesday... Mostly cloudy. Numerous showers early in the morning. A slight chance of thunderstorms in the morning. Scattered showers late in the morning. Humid with highs in the upper 70s. West winds 5 to 10 mph. Chance of precipitation 70%.
Wednesday Night... Partly cloudy. Lows in the upper 50s. Northwest winds around 5 mph.
Thursday... Partly cloudy in the morning, then clearing. Highs in the upper 70s. North winds 5 to 10 mph.
Thursday Night... Clear. Lows in the lower 50s. East winds around 5 mph, becoming southeast after midnight.
Friday... Sunny. Highs in the upper 70s.
Friday Night... Mostly clear in the evening, then partly cloudy with a slight chance of showers after midnight. Lows in the lower 60s. Chance of precipitation 20%.
Saturday... Mostly cloudy. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of precipitation 30%.
Saturday Night... Mostly cloudy. A chance of showers in the evening. Lows in the upper 50s. Chance of precipitation 40%.
Sunday... Partly cloudy in the morning, then becoming mostly cloudy. A chance of showers. Highs in the upper 70s. Chance of precipitation 30%.
Sunday Night... Mostly cloudy with a chance of showers. Lows in the upper 50s. Chance of precipitation 40%.
Monday... Mostly cloudy with a chance of showers. Highs in the upper 70s. Chance of precipitation 50%.
Monday Night... Showers likely. Lows in the lower 60s. Chance of precipitation 60%.
POP = Probability of Precipitation
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