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Frentress Lake, IL 7-Day Night Weather Forecast
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Frentress Lake, IL Weather Forecast
Frentress Lake, IL Weather Forecast Date: 1156 PM CDT Thu Aug 13 2026
The area/counties/county of: Jo Daviess, including the city of Galena.or toggle through each period.
Rest of Tonight... Mostly cloudy with a chance of showers and thunderstorms. Near steady temperature in the upper 60s. East winds around 5 mph. Chance of rain 50%.
Friday... Mostly cloudy with a chance of showers and thunderstorms. Humid with highs in the upper 70s. East winds 5 to 10 mph. Chance of rain 50%.
Friday Night... Showers and thunderstorms likely in the evening, then showers with a chance of thunderstorms after midnight. Patchy fog after midnight. Locally heavy rainfall possible after midnight. Humid with lows in the upper 60s. East winds around 10 mph. Chance of rain 90%.
Saturday... Mostly cloudy. Showers with a chance of thunderstorms in the morning. Patchy fog in the morning. Humid with highs in the mid 80s. Southeast winds 5 to 10 mph, becoming west in the afternoon. Chance of rain 80%.
Saturday Night... Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers likely after midnight. Humid with lows around 70. Northwest winds around 5 mph. Chance of rain 70%.
Sunday... Mostly cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Highs in the lower 80s. Chance of rain 30%.
Sunday Night... Mostly clear. Lows in the lower 60s. Highs in the upper 70s.
Monday... Mostly clear. Lows in the lower 60s. Highs in the upper 70s.
Tuesday... Mostly sunny. Highs around 80.
Tuesday Night... Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 60s. Chance of rain 60%.
Wednesday... Mostly cloudy in the morning, then becoming partly sunny. A chance of showers in the morning. Highs in the upper 70s. Chance of rain 40%.
Wednesday Night... Partly cloudy. Lows in the lower 60s. Highs in the mid 70s.
POP = Probability of Precipitation
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