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Lancaster, IL 7-Day Night Weather Forecast
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Lancaster, IL Weather Forecast
Lancaster, IL Weather Forecast Date: 237 PM CDT Thu Sep 03 2026
The area/counties/county of: Wabash, including the city of Mount Carmel.or toggle through each period.
This Afternoon... Mostly sunny. Hot. Near steady temperature in the upper 90s. Southwest winds around 5 mph. Highest heat index readings heat index readings up to 105.
Tonight... Mostly clear. Lows in the mid 70s. South winds around 5 mph in the evening, becoming light and variable.
Friday... Sunny, hot with highs around 100. Southwest winds around 5 mph.
Friday Night... Mostly clear. Lows in the mid 70s. Southwest winds around 5 mph in the evening, becoming light and variable.
Saturday... Sunny, hot with highs in the upper 90s. West winds around 5 mph.
Saturday Night... Mostly clear. Lows around 70. Highs in the lower 90s.
Sunday... Mostly clear. Lows around 70. Highs in the lower 90s.
Sunday Night... Mostly clear. Lows in the mid 60s.
Labor Day... Sunny. Highs in the lower 90s.
Monday Night... Mostly clear. Hot. Lows in the upper 60s. Highs in the mid 90s.
Tuesday... Mostly clear. Hot. Lows in the upper 60s. Highs in the mid 90s.
Tuesday Night... Mostly clear. Hot. Lows in the lower 70s. Highs in the upper 90s.
POP = Probability of Precipitation
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