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Main Lake, IL 7-Day Night Weather Forecast
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Main Lake, IL Weather Forecast
Main Lake, IL Weather Forecast Date: 217 PM CDT Sat Oct 10 2026
The area/counties/county of: Hamilton, including the city of Mcleansboro.or toggle through each period.
This Afternoon... Mostly cloudy. Near steady temperature in the lower 70s. East winds 5 to 10 mph.
Tonight... Mostly cloudy. A chance of showers in the evening. Lows in the upper 50s. Northeast winds 10 to 15 mph, diminishing to around 5 mph after midnight. Chance of rain 50%.
Sunday... Sunny. Highs in the lower 80s. Northwest winds 5 to 10 mph.
Sunday Night... Mostly clear. Lows in the upper 50s. West winds around 5 mph, becoming southwest after midnight.
Columbus Day... Sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph.
Monday Night... Clear. Lows in the mid 60s. Highs in the lower 90s.
Tuesday... Clear. Lows in the mid 60s. Highs in the lower 90s.
Tuesday Night... Mostly clear. Lows in the upper 60s.
Wednesday... Partly sunny. A chance of showers in the morning, then showers likely in the afternoon. Highs in the mid 80s. Chance of rain 60%.
Wednesday Night... Mostly cloudy with a chance of showers. Lows in the mid 60s. Highs around 80. Chance of rain 50%.
Thursday... Mostly cloudy with a chance of showers. Lows in the mid 60s. Highs around 80. Chance of rain 50%.
Thursday Night... A chance of showers in the evening. Mostly cloudy. Lows in the upper 50s. Chance of rain 50%.
POP = Probability of Precipitation
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