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Earth City, MO Weather Forecast
Earth City, MO Weather Forecast Date: 853 PM CDT Fri Aug 07 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.
Tonight... Mostly clear this evening, then becoming partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.
Saturday... Sunny with highs around 90. West winds around 5 mph. Heat index values up to 101.
Saturday Night... Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the lower 70s. Southeast winds around 5 mph. Heat index values up to 100 early in the evening.
Sunday... Mostly sunny. Humid with highs in the lower 90s. South winds 5 to 10 mph. Heat index values up to 108.
Sunday Night... Mostly clear. Humid with lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 107 early in the evening.
Monday... Sunny. Highs in the mid 90s. Heat index values up to 110.
Monday Night... Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the mid 70s. Chance of rain 20%. Heat index values up to 105 early in the evening.
Tuesday... Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20%. Heat index values up to 105.
Tuesday Night... Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 70s. Chance of rain 50%. Heat index values up to 105 early in the evening.
Wednesday... Mostly cloudy. A chance of showers and thunderstorms. Highs in the upper 80s. Lows around 70. Chance of rain 50%. Heat index values up to 100.
Wednesday Night... Mostly cloudy. A chance of showers and thunderstorms. Highs in the upper 80s. Lows around 70. Chance of rain 50%. Heat index values up to 100.
Thursday... Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50%.
Thursday Night... A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 50%.
POP = Probability of Precipitation
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