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City of Mattoon, IllinoisMattoon, IL 7-Day Night Weather Forecast
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Mattoon, IL Weather Forecast
Mattoon, IL Weather Forecast Date: 427 PM CDT Thu Oct 29 2026
The area/counties/county of: Coles, including the cities of: Charleston and Mattoon.or toggle through each period.
Tonight... Mostly cloudy with isolated showers this evening, then partly cloudy after midnight. Lows around 50. North winds around 5 mph, becoming northeast after midnight. Chance of rain 20%.
Friday... Partly sunny. Highs in the lower 70s. East winds 5 to 10 mph.
Friday Night... Mostly cloudy. Lows in the lower 50s. East winds around 5 mph.
Saturday... Cloudy. Highs in the upper 60s. East winds around 5 mph.
Saturday Night... Cloudy. A chance of showers after midnight. Lows in the lower 50s. East winds around 5 mph. Chance of rain 30%.
Sunday... Mostly cloudy with a 50% chance of showers. Highs in the upper 60s.
Sunday Night... Mostly cloudy. Lows in the lower 50s.
Monday... Mostly cloudy with a 40% chance of showers. Highs in the upper 60s.
Monday Night... Mostly cloudy with a 50% chance of showers. Lows in the mid 50s. Highs in the mid 70s.
Tuesday... Mostly cloudy with a 50% chance of showers. Lows in the mid 50s. Highs in the mid 70s.
Wednesday... Showers likely. Highs around 70. Chance of rain 70%.
Wednesday Night... Mostly cloudy with a 50% chance of showers. Lows in the upper 40s.
POP = Probability of Precipitation
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