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Prospect Heights, IL 7-Day Night Weather Forecast
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Prospect Heights, IL Weather Forecast
Prospect Heights, IL Weather Forecast Date: 925 PM CDT Mon Sep 28 2026
The area/counties/county of: Northern Cook, including the cities of: Evanston, Des Plaines, Schaumburg, Palatine, and Northbrook.or toggle through each period.
Rest of Tonight... Mostly clear late in the evening, then becoming mostly cloudy. Patchy fog after midnight. Areas of fog late. Lows in the lower 50s. Northeast winds around 5 mph late in the evening, becoming light and variable.
Tuesday... Partly cloudy. Areas of fog early in the morning. Highs in the mid 70s. South winds 5 to 10 mph.
Tuesday Night... Mostly cloudy. A slight chance of showers late. Lows in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 20%.
Wednesday... Cloudy. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the lower 70s. South winds 5 to 10 mph. Chance of precipitation 50%.
Wednesday Night... Cloudy. A chance of showers with a slight chance of thunderstorms. Near steady temperature in the upper 60s. South winds 5 to 10 mph. Chance of precipitation 50%.
Thursday... Showers with a chance of thunderstorms. Highs in the lower 70s. Chance of precipitation 90%.
Thursday Night... Showers likely with a slight chance of thunderstorms. Lows in the upper 50s. Chance of precipitation 70%.
Friday... Mostly cloudy. A chance of showers in the morning. Highs in the mid 60s. Chance of precipitation 40%.
Friday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 50s.
Saturday... Partly cloudy with a chance of showers in the morning, then mostly cloudy in the afternoon. Highs in the mid 60s. Chance of precipitation 30%.
Saturday Night... Mostly cloudy. Lows in the lower 50s.
Sunday... Mostly cloudy in the morning, then becoming partly cloudy. Highs in the mid 60s.
Sunday Night... Partly cloudy. Lows in the upper 40s.
POP = Probability of Precipitation
Prospect Heights Radar Loop
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