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Mendon, IL Weather Forecast
Mendon, IL Weather Forecast Date: 127 PM CDT Sun Sep 06 2026
The area/counties/county of: Adams County Il, including the cities of: Quincy, Mount Sterling, Pittsfield, Hannibal, and Bowling Green.or toggle through each period.
This Afternoon... Mostly sunny. Highs in the upper 80s. East winds 5 to 10 mph.
Tonight... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 60s. East winds 5 to 10 mph.
Labor Day... Mostly sunny. Highs in the upper 80s. East winds 5 to 10 mph.
Monday Night... Partly cloudy. Lows in the mid 60s. Southeast winds 5 to 10 mph.
Tuesday... Mostly sunny. Hot with highs in the mid 90s. South winds 5 to 10 mph.
Tuesday Night... Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Not as cool with lows in the mid 70s. Chance of rain 20%.
Wednesday... Showers likely with a chance of thunderstorms. Highs in the lower 90s. Lows in the mid 60s. Chance of rain 70%.
Wednesday Night... Showers likely with a chance of thunderstorms. Highs in the lower 90s. Lows in the mid 60s. Chance of rain 70%.
Thursday... Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20%.
Thursday Night... Mostly clear. A 20% chance of showers. Lows around 60. Highs in the mid 80s.
Friday... Mostly clear. A 20% chance of showers. Lows around 60. Highs in the mid 80s.
Friday Night... Mostly clear with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 40%.
POP = Probability of Precipitation
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