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Dayton, IL Weather Forecast
Dayton, IL Weather Forecast Date: 906 PM CDT Mon Oct 26 2026
The area/counties/county of: Henry County Il, including the city of Geneseo.or toggle through each period.
Tonight... Mostly cloudy. Patchy fog after midnight. Lows in the upper 40s. East winds 5 to 10 mph.
Tuesday... Mostly cloudy. Highs in the lower 70s. Southeast winds 5 to 10 mph.
Tuesday Night... Mostly cloudy. Lows in the mid 50s. South winds 5 to 10 mph.
Wednesday... Mostly sunny. Highs in the mid 70s. South winds 5 to 10 mph.
Wednesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s. South winds around 10 mph with gusts up to 20 mph.
Thursday... Partly sunny. Highs in the mid 70s.
Thursday Night... Partly cloudy. Lows in the lower 50s.
Friday... Partly sunny in the morning, then becoming mostly cloudy. A 40% chance of showers. Highs in the mid 70s.
Friday Night... Mostly cloudy. Lows in the mid 50s.
Saturday... Mostly cloudy with a 40% chance of showers. Highs in the lower 70s. Lows in the mid 50s.
Sunday... Mostly cloudy with a 40% chance of showers. Highs in the lower 70s. Lows in the mid 50s.
Sunday Night... Mostly cloudy. A chance of showers after midnight. Lows in the mid 50s. Chance of rain 30%.
POP = Probability of Precipitation
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