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City of Waukegan, ILWaukegan, IL 7-Day Night Weather Forecast
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Waukegan, IL Weather Forecast
Waukegan, IL Weather Forecast Date: 121 AM CDT Fri Oct 09 2026
The area/counties/county of: Lake County Il, including the cities of: Waukegan, Buffalo Grove, Mundelein, and Gurnee.or toggle through each period.
Rest of Tonight... Mostly cloudy. Lows in the upper 40s. West winds around 5 mph.
Friday... Mostly cloudy. A slight chance of showers late in the morning. A slight chance of thunderstorms in the late morning and afternoon. A chance of showers in the afternoon. Highs in the upper 60s. Southeast winds 5 to 10 mph. Chance of precipitation 50%.
Friday Night... Partly cloudy in the evening, then becoming clear. Near steady temperature in the upper 50s. Southeast winds around 10 mph.
Saturday... Mostly sunny in the morning, then becoming mostly cloudy. Highs in the upper 70s. South winds 10 to 15 mph.
Saturday Night... Mostly cloudy. Lows in the upper 50s. Southeast winds 5 to 10 mph.
Sunday... Partly cloudy in the morning, then clearing. Highs in the lower 70s inland, but only in the upper 60s near the lake.
Sunday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s.
Columbus Day... Mostly cloudy in the morning, then becoming partly cloudy. Highs in the upper 70s.
Monday Night... Mostly cloudy in the evening, then becoming partly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows in the upper 50s. Chance of precipitation 40%.
Tuesday... Partly cloudy. Highs in the upper 60s.
Tuesday Night... Partly cloudy. Lows in the lower 50s.
Wednesday... Mostly cloudy. A chance of showers in the afternoon. Highs in the mid 60s. Chance of precipitation 30%.
Wednesday Night... Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 50s. Chance of precipitation 60%.
POP = Probability of Precipitation
Waukegan Radar Loop
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