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Nashville Reservoir, IL Weather Forecast
Nashville Reservoir, IL Weather Forecast Date: 612 PM CDT Mon Aug 17 2026
The area/counties/county of: Clinton County Il, including the cities of: Centralia and Salem.or toggle through each period.
Tonight... Partly cloudy. Patchy fog after midnight. Lows in the lower 60s. North winds around 5 mph this evening, becoming light and variable.
Tuesday... Areas of fog in the morning. Sunny. Highs in the mid 80s. Southwest winds around 5 mph.
Tuesday Night... Mostly clear in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. South winds around 5 mph. Chance of rain 50%.
Wednesday... Showers and thunderstorms likely in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 80s. Southwest winds around 5 mph. Chance of rain 70%.
Wednesday Night... Thunderstorms likely. Showers likely. Lows in the upper 60s. Northeast winds around 5 mph. Chance of rain 70%.
Thursday... Partly sunny. A chance of showers and thunderstorms, mainly in the morning. Highs in the lower 80s. Chance of rain 50%.
Thursday Night... Mostly clear. Lows in the lower 60s. Highs in the mid 80s.
Friday... Mostly clear. Lows in the lower 60s. Highs in the mid 80s.
Friday Night... Mostly clear with a slight chance of showers and thunderstorms. Lows in the mid 60s. Chance of rain 20%.
Saturday... Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20%.
Saturday Night... Mostly clear. Lows in the lower 60s. Highs in the lower 80s.
Sunday... Mostly clear. Lows in the lower 60s. Highs in the lower 80s.
Sunday Night... Partly cloudy. Lows in the lower 60s. Highs in the lower 80s.
POP = Probability of Precipitation
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