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Longacre Park, IL Weather Forecast
Longacre Park, IL Weather Forecast Date: 127 AM CDT Fri Aug 21 2026
The area/counties/county of: Madison County Il, including the cities of: Alton, Edwardsville, Belleville, Cahokia, Saint Charles, and Saint Louis.or toggle through each period.
Rest of Tonight... Mostly clear. Patchy fog. Lows in the lower 60s. Light and variable winds.
Friday... Patchy fog in the morning. Sunny. Highs in the mid 80s. Light and variable winds, becoming west around 5 mph in the afternoon.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 60s. Southwest winds around 5 mph.
Saturday... Sunny. Highs in the mid 80s. Northwest winds 5 to 10 mph.
Saturday Night... Mostly clear. Lows in the mid 60s. North winds 5 to 10 mph.
Sunday... Sunny. Highs in the lower 80s.
Sunday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s.
Monday... Partly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 40%.
Monday Night... Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers and thunderstorms. Lows in the mid 60s. Chance of rain 40%.
Tuesday... Mostly sunny. Highs in the mid 80s.
Tuesday Night... Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 20%.
Wednesday... Partly sunny. Highs in the mid 80s.
Wednesday Night... Partly cloudy with a slight chance of showers in the evening, then mostly clear after midnight. Lows in the mid 60s. Chance of rain 20%.
POP = Probability of Precipitation
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