Weather WorldSouth Shore State Park, IL 7-Day Night Weather Forecast
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South Shore State Park, IL Weather Forecast
South Shore State Park, IL Weather Forecast Date: 923 PM CDT Thu Aug 20 2026
The area/counties/county of: Clinton County Il, including the cities of: Centralia and Salem.or toggle through each period.
Tonight... Mostly clear. Patchy fog after midnight. Lows in the lower 60s. Northeast winds around 5 mph.
Friday... Patchy fog in the morning. Sunny. Highs in the mid 80s. Light and variable winds, becoming northwest around 5 mph in the afternoon.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s. Southwest winds around 5 mph.
Saturday... Mostly sunny. Highs in the mid 80s. Northwest winds 5 to 10 mph.
Saturday Night... Mostly clear. Lows in the lower 60s. North winds around 5 mph in the evening, becoming light and variable.
Sunday... Sunny. Highs in the lower 80s.
Sunday Night... Partly cloudy. Lows around 60. Highs in the lower 80s.
Monday... Partly cloudy. Lows around 60. Highs in the lower 80s.
Monday Night... Partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 60s. Highs in the mid 80s. Chance of rain 20%.
Tuesday... Partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 60s. Highs in the mid 80s. Chance of rain 20%.
Tuesday Night... Partly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 30%.
Wednesday... Mostly sunny. A slight chance of showers in the morning. Highs in the mid 80s. Chance of rain 20%.
Wednesday Night... Partly cloudy. Lows in the mid 60s. Highs in the mid 80s.
POP = Probability of Precipitation
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