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Roger Williams Park, IL 7-Day Night Weather Forecast
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Roger Williams Park, IL Weather Forecast
Roger Williams Park, IL Weather Forecast Date: 146 AM CDT Wed Sep 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... Showers and a slight chance of thunderstorms. Near steady temperature in the lower 70s. Southwest winds 5 to 10 mph. Chance of precipitation 90%.
Wednesday... Mostly cloudy. Showers with a slight chance of thunderstorms early in the morning, then a chance of showers late in the morning. Humid with highs in the upper 70s. West winds 5 to 10 mph. Chance of precipitation 80%.
Wednesday Night... Partly cloudy. Lows around 60. Northwest winds 5 to 10 mph.
Thursday... Partly cloudy in the morning, then clearing. Highs in the mid 70s. North winds around 5 mph.
Thursday Night... Clear. Lows in the mid 50s. East winds around 5 mph in the evening, becoming light and variable.
Friday... Sunny. Highs in the upper 70s.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s.
Saturday... Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of precipitation 40%.
Saturday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 60s.
Sunday... Mostly cloudy. A chance of showers in the afternoon. Highs in the upper 70s. Chance of precipitation 30%.
Sunday Night... Mostly cloudy. A chance of showers after midnight. Lows in the mid 60s. Chance of precipitation 40%.
Monday... Mostly cloudy with a chance of showers. Highs in the mid 80s. Chance of precipitation 50%.
Monday Night... Showers likely. Lows in the mid 60s. Chance of precipitation 60%.
POP = Probability of Precipitation
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