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City of Belvidere, ILBelvidere, IL 7-Day Night Weather Forecast
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Belvidere, IL Weather Forecast
Belvidere, IL Weather Forecast Date: 1220 AM CST Sat Nov 07 2026
The area/counties/county of: Boone, including the city of Belvidere.or toggle through each period.
Rest of Tonight... Clear. Patchy fog late. Nearly steady temperatures around 30. Light and variable winds.
Saturday... Partly cloudy. Patchy fog early in the morning. Highs around 50. West winds around 5 mph.
Saturday Night... Partly cloudy. Lows in the mid 30s. Southwest winds 5 to 10 mph.
Sunday... Partly cloudy in the morning, then clearing. Highs in the upper 50s. West winds 10 to 15 mph with gusts up to 25 mph.
Sunday Night... Mostly clear. Lows in the lower 30s. Northwest winds 5 to 10 mph.
Monday... Partly cloudy. Highs in the upper 50s.
Monday Night... Mostly clear. Lows around 40.
Tuesday... Mostly sunny. Highs in the lower 60s.
Tuesday Night... Partly cloudy. Lows in the mid 30s.
Veterans Day... Partly cloudy. Highs in the mid 50s.
Wednesday Night... Mostly cloudy. Lows in the mid 30s.
Thursday... Mostly cloudy. Highs in the upper 40s.
Thursday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows around 30.
POP = Probability of Precipitation
Belvidere Radar Loop
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