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Chapin, IL Weather Forecast
Chapin, IL Weather Forecast Date: 337 PM CDT Sun Oct 25 2026
The area/counties/county of: Morgan, including the city of Jacksonville.or toggle through each period.
Tonight... Mostly cloudy. Lows in the lower 50s. South winds around 5 mph.
Monday... Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 70s. Southwest winds around 5 mph.
Monday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 50s. Southeast winds around 5 mph.
Tuesday... Mostly cloudy. Highs in the mid 70s. South winds 5 to 10 mph.
Tuesday Night... Mostly cloudy. Lows in the lower 50s. South winds around 5 mph.
Wednesday... Mostly sunny. Highs in the upper 70s.
Wednesday Night... Mostly clear. Lows in the mid 50s. Highs in the lower 80s.
Thursday... Mostly clear. Lows in the mid 50s. Highs in the lower 80s.
Thursday Night... Partly cloudy. Lows in the mid 50s. Highs in the lower 80s.
Friday... Partly cloudy. Lows in the mid 50s. Highs in the lower 80s.
Friday Night... Mostly cloudy. Lows in the upper 50s.
Saturday... Mostly cloudy with a chance of showers in the morning, then partly sunny with showers likely in the afternoon. Highs in the mid 70s. Chance of rain 60%.
Saturday Night... Showers likely. Lows in the upper 50s. Chance of rain 70%.
POP = Probability of Precipitation
Chapin Radar Loop
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