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Andover, IL Weather Forecast
Andover, IL Weather Forecast Date: 126 AM CDT Sun Sep 06 2026
The area/counties/county of: Henry County Il, including the city of Geneseo.or toggle through each period.
Rest of Tonight... Mostly cloudy. Lows in the mid 60s. Northeast winds 5 to 10 mph.
Sunday... Patchy fog in the morning. Mostly sunny. Humid with highs in the lower 80s. East winds 5 to 10 mph.
Sunday Night... Partly cloudy in the evening, then clearing. Lows in the lower 60s. East winds 5 to 10 mph.
Labor Day... Mostly sunny. Highs in the lower 80s. Southeast winds 5 to 10 mph.
Monday Night... Partly cloudy. Lows in the lower 60s. Southeast winds 5 to 10 mph.
Tuesday... Mostly sunny. Highs in the upper 80s.
Tuesday Night... Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Warmer with lows in the lower 70s. Chance of rain 50%.
Wednesday... Partly sunny. Highs in the upper 80s.
Wednesday Night... Partly cloudy. Lows in the lower 60s. Highs in the lower 80s.
Thursday... Partly cloudy. Lows in the lower 60s. Highs in the lower 80s.
Thursday Night... Mostly clear. Lows in the lower 60s. Highs in the lower 80s.
Friday... Mostly clear. Lows in the lower 60s. Highs in the lower 80s.
POP = Probability of Precipitation
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