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Keyesport, IL 7-Day Night Weather Forecast
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Keyesport, IL Weather Forecast
Keyesport, IL Weather Forecast Date: 927 AM CDT Sat Sep 05 2026
The area/counties/county of: Clinton County Il, including the cities of: Centralia and Salem.or toggle through each period.
Rest of Today... Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph, becoming northwest this afternoon. Heat index values up to 111.
Tonight... Partly cloudy in the evening, then clearing. Humid with lows around 70. North winds around 5 mph. Heat index values up to 105 early in the evening.
Sunday... Sunny. Highs around 90. Northeast winds 5 to 10 mph.
Sunday Night... Mostly clear. Lows in the lower 60s. Northeast winds 5 to 10 mph.
Labor Day... Sunny. Highs in the upper 80s. East winds around 5 mph.
Monday Night... Mostly clear. Hot. Lows in the mid 60s. Highs in the mid 90s.
Tuesday... Mostly clear. Hot. Lows in the mid 60s. Highs in the mid 90s.
Tuesday Night... Mostly clear. Hot. Lows in the lower 70s. Highs around 100. Heat index values up to 105.
Wednesday... Mostly clear. Hot. Lows in the lower 70s. Highs around 100. Heat index values up to 105.
Wednesday 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 around 70. Chance of rain 40%. Heat index values up to 100 early in the evening.
Thursday... Mostly sunny. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Not as warm with highs around 90. Chance of rain 50%.
Thursday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 60s.
POP = Probability of Precipitation
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