Weather WorldGlenwood Lake, IL 7-Day Night Weather Forecast
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Glenwood Lake, IL Weather Forecast
Glenwood Lake, IL Weather Forecast Date: 737 PM CDT Sat Aug 08 2026
The area/counties/county of: Knox, including the city of Galesburg.or toggle through each period.
Tonight... Mostly clear this evening, then becoming partly cloudy. Lows in the mid 60s. East winds around 5 mph, becoming southeast after midnight.
Sunday... Partly sunny with a slight chance of showers and thunderstorms. Humid with highs in the upper 80s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20%. Heat index values up to 104 in the afternoon.
Sunday Night... Partly cloudy with a chance of showers and thunderstorms. Humid with lows in the lower 70s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50%.
Monday... Mostly sunny. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph. Heat index values up to 105 in the afternoon.
Monday Night... Partly cloudy with a chance of showers and thunderstorms. Humid with lows in the lower 70s. South winds around 5 mph. Chance of rain 40%.
Tuesday... Partly sunny. A chance of showers and thunderstorms in the morning. Highs in the upper 80s. Chance of rain 40%. Heat index values up to 100 in the afternoon.
Tuesday Night... Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows around 70. Chance of rain 70%.
Wednesday... Partly sunny in the morning, then becoming mostly cloudy. A chance of showers in the morning. Highs in the mid 80s. Chance of rain 50%.
Wednesday Night... Partly cloudy with a chance of showers. A chance of thunderstorms after midnight. Lows in the upper 60s. Chance of rain 50%.
Thursday... Mostly cloudy with a chance of showers and thunderstorms. Highs in the upper 70s. Lows in the lower 60s. Chance of rain 50%.
Thursday Night... Mostly cloudy with a chance of showers and thunderstorms. Highs in the upper 70s. Lows in the lower 60s. Chance of rain 50%.
Friday... Mostly cloudy. A chance of showers. Highs in the mid 70s. Lows in the lower 60s. Chance of rain 50%.
Friday Night... Mostly cloudy. A chance of showers. Highs in the mid 70s. Lows in the lower 60s. Chance of rain 50%.
POP = Probability of Precipitation
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