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Rochester, IL Weather Forecast
Rochester, IL Weather Forecast Date: 752 PM CDT Mon Sep 21 2026
The area/counties/county of: Sangamon, including the city of Springfield.or toggle through each period.
Tonight... Cloudy. A chance of sprinkles this evening. Lows in the upper 50s. Northeast winds 5 to 10 mph.
Tuesday... Mostly cloudy. A chance of sprinkles in the morning. Highs in the upper 60s. Northeast winds 5 to 10 mph with gusts up to 20 mph.
Tuesday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 50s. Northeast winds 5 to 10 mph.
Wednesday... Mostly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph.
Wednesday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph.
Thursday... Partly cloudy. Highs in the mid 70s. Lows in the mid 50s.
Thursday Night... Partly cloudy. Highs in the mid 70s. Lows in the mid 50s.
Friday... Mostly cloudy. Highs in the mid 70s. Lows in the mid 50s.
Saturday... Mostly cloudy. Highs in the mid 70s. Lows in the mid 50s.
Sunday... Partly cloudy. Highs in the upper 70s. Lows in the mid 50s.
POP = Probability of Precipitation
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