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Promontory Point Park, IL 7-Day Night Weather Forecast
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Promontory Point Park, IL Weather Forecast
Promontory Point Park, IL Weather Forecast Date: 216 PM CDT Tue Sep 01 2026
The area/counties/county of: Central Cook, including the cities of: Chicago, Cicero, Oak Lawn, Oak Park, and La Grange.or toggle through each period.
Late This Afternoon... Partly cloudy. Isolated showers and thunderstorms. Temperatures in the mid 90s. Southwest winds around 10 mph. Chance of precipitation 20%. Heat index values up to 107.
Tonight... Partly cloudy in the evening then clearing. Humid. Lows in the mid 70s. Southwest winds 5 to 10 mph. Heat index values up to 103 early in the evening.
Wednesday... Mostly sunny. Hot, humid with highs in the mid 90s. Southwest winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. Heat index values up to 100.
Wednesday Night... Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the mid 70s. Southwest winds 5 to 10 mph.
Thursday... Partly cloudy in the morning, then becoming mostly cloudy. A slight chance of showers and thunderstorms. Humid with highs around 90. West winds around 5 mph. Chance of precipitation 20%.
Thursday Night... Partly cloudy. A chance of showers and thunderstorms. Humid with lows in the mid 70s. Southeast winds around 5 mph. Chance of precipitation 50%.
Friday... Partly cloudy. A chance of showers and thunderstorms, mainly in the morning. Highs in the upper 80s inland, but only in the lower 80s near the lake. Chance of precipitation 50%.
Friday Night... Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of precipitation 50%.
Saturday... Partly cloudy. A chance of showers and thunderstorms in the morning. Highs in the mid 80s. Chance of precipitation 50%.
Saturday Night... Partly cloudy. Lows in the lower 70s.
Sunday... Mostly cloudy. A chance of showers in the morning. Highs in the lower 80s. Chance of precipitation 30%.
Sunday Night... Mostly cloudy. Lows in the upper 60s.
Labor Day... Mostly cloudy. Highs around 80.
Monday Night... Mostly cloudy. Lows in the mid 60s.
POP = Probability of Precipitation
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