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Percival, IL Weather Forecast
Percival, IL Weather Forecast Date: 337 PM CDT Mon Sep 21 2026
The area/counties/county of: Effingham, including the city of Effingham.or toggle through each period.
Tonight... Mostly cloudy with a chance of sprinkles. Lows in the upper 50s. Northeast winds 5 to 10 mph.
Tuesday... Mostly cloudy with a chance of sprinkles in the morning, then partly sunny in the afternoon. Highs in the lower 70s. Northeast winds 5 to 10 mph.
Tuesday Night... Mostly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph.
Wednesday... Partly sunny. Highs in the lower 70s. North winds 5 to 10 mph.
Wednesday Night... Partly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph.
Thursday... Partly cloudy. Highs in the mid 70s. Lows in the lower 50s.
Friday... Partly cloudy. Highs in the mid 70s. Lows in the lower 50s.
Saturday... Mostly cloudy. Highs in the mid 70s. Lows in the lower 50s.
Saturday Night... Mostly cloudy. Highs in the mid 70s. Lows in the lower 50s.
Sunday... Partly cloudy. Highs in the upper 70s. Lows in the mid 50s.
POP = Probability of Precipitation
Percival Radar Loop
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