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Forest Lake, IL 7-Day Night Weather Forecast
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Forest Lake, IL Weather Forecast
Forest Lake, IL Weather Forecast Date: 807 PM CST Tue Mar 03 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. Patchy fog after midnight. Lows in the lower 30s. Northeast winds around 5 mph.
Wednesday... Mostly cloudy. Patchy fog early in the morning. A slight chance of rain showers late. Highs in the mid 40s inland, but only in the lower 40s near the lake. East winds 5 to 10 mph. Chance of precipitation 20%.
Wednesday Night... Cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Showers likely late. Patchy fog after midnight. Near steady temperature in the upper 30s. East winds around 5 mph. Chance of precipitation 60%.
Thursday... Cloudy. Patchy fog in the morning. Showers likely, mainly in the morning. Highs in the upper 40s inland, but only in the lower 40s near the lake. North winds around 5 mph. Chance of precipitation 70%.
Thursday Night... Mostly cloudy. A slight chance of showers. Near steady temperature in the lower 40s. East winds around 5 mph. Chance of precipitation 20%.
Friday... Showers likely in the morning, then showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 60s inland, but only in the lower 60s near the lake. Chance of precipitation 90%.
Friday Night... A slight chance of thunderstorms. Showers. Lows around 50. Chance of precipitation 90%.
Saturday... Mostly cloudy. A chance of showers in the morning. Highs around 60. Chance of precipitation 30%.
Saturday Night... Partly cloudy in the evening, then clearing. Lows in the upper 30s.
Sunday... Partly cloudy in the morning, then clearing. Highs in the lower 60s.
Sunday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s.
Monday... Partly cloudy in the morning, then clearing. Highs in the mid 60s.
Monday Night... Mostly clear. Lows in the upper 40s.
POP = Probability of Precipitation
Forest Lake Radar Loop
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