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Karl Lake, IL 7-Day Night Weather Forecast
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Karl Lake, IL Weather Forecast
Karl Lake, IL Weather Forecast Date: 216 AM CDT Wed Sep 16 2026
The area/counties/county of: Mercer, including the city of Aledo.or toggle through each period.
Today... A slight chance of thunderstorms. Showers likely after midnight, then a chance of showers this afternoon. Humid with highs in the mid 70s. Northeast winds 5 to 10 mph. Chance of rain 70%.
Tonight... Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Humid with lows in the mid 60s. East winds around 5 mph. Chance of rain 50%.
Thursday... Mostly cloudy. A chance of showers and thunderstorms in the morning. Humid with highs around 80. Northwest winds around 5 mph. Chance of rain 50%.
Thursday Night... Mostly cloudy. A chance of showers after midnight. Humid with lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 30%.
Friday... Mostly sunny with a chance of showers. Humid with highs in the lower 80s. Southeast winds 5 to 10 mph. Chance of rain 50%.
Friday Night... Mostly clear in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 50%.
Saturday... Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. Highs in the mid 80s. Chance of rain 50%.
Saturday Night... Showers likely with a chance of thunderstorms. Lows in the mid 60s. Chance of rain 60%.
Sunday... Mostly cloudy. A chance of showers in the morning, then showers likely in the afternoon. Highs in the mid 70s. Chance of rain 60%.
Sunday Night... Mostly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 50%.
Monday... Mostly cloudy with a 50% chance of showers. Highs in the lower 70s.
Monday Night... Partly cloudy. A 30% chance of showers. Lows in the upper 50s. Highs in the mid 70s.
POP = Probability of Precipitation
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