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Big Mound, IL 7-Day Night Weather Forecast
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Big Mound, IL Weather Forecast
Big Mound, IL Weather Forecast Date: 127 PM CDT Sun Sep 13 2026
The area/counties/county of: Wayne County Il, including the city of Fairfield.or toggle through each period.
This Afternoon... Mostly sunny. Near steady temperature in the upper 80s. Northwest winds 5 to 10 mph.
Tonight... Partly cloudy. Lows in the lower 60s. Northeast winds 5 to 10 mph.
Monday... Mostly sunny. Highs in the mid 80s. East winds around 10 mph.
Monday Night... Mostly clear. Lows in the upper 60s. Southeast winds 5 to 10 mph.
Tuesday... Sunny, hot with highs in the upper 90s. South winds 5 to 10 mph.
Tuesday Night... Mostly clear. Hot. Lows in the lower 70s. Highs in the upper 90s.
Wednesday... Mostly clear. Hot. Lows in the lower 70s. Highs in the upper 90s.
Thursday... Partly cloudy. Hot. Highs in the mid 90s. Lows around 70.
Thursday Night... Partly cloudy. Hot. Highs in the mid 90s. Lows around 70.
Friday... Mostly clear. Highs in the lower 90s. Lows in the upper 60s.
POP = Probability of Precipitation
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