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Gilmore Lake, IL Weather Forecast
Gilmore Lake, IL Weather Forecast Date: 923 PM CDT Fri Aug 28 2026
The area/counties/county of: Monroe County Il, Jefferson County Mo.or toggle through each period.
Tonight... Mostly clear. Patchy fog after midnight. Lows in the lower 60s. East winds around 5 mph this evening, becoming light and variable.
Saturday... Mostly sunny. Highs in the upper 80s. Southeast winds around 5 mph.
Saturday Night... Partly cloudy in the evening, then clearing. Lows in the upper 60s. South winds around 5 mph.
Sunday... Sunny. Highs in the mid 90s. South winds 5 to 10 mph.
Sunday Night... Mostly clear. Lows in the lower 70s. South winds around 5 mph.
Monday... Sunny, hot with highs in the upper 90s.
Monday Night... Mostly clear. Hot. Lows in the mid 70s. Highs in the upper 90s. Heat index values up to 105.
Tuesday... Mostly clear. Hot. Lows in the mid 70s. Highs in the upper 90s. Heat index values up to 105.
Wednesday... Mostly clear. Hot. Lows in the mid 70s. Highs in the upper 90s. Heat index values up to 105.
Thursday... Mostly clear. Hot. Lows in the mid 70s. Highs in the upper 90s. Heat index values up to 105.
Thursday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 100 early in the evening.
POP = Probability of Precipitation
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