Weather forecast for: East St. Louis IL
Last Update: 4:01 pm CDT Aug 5, 2026
This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 91. South wind around 7 mph.
Tonight: Showers and thunderstorms likely, mainly after 4am. Mostly cloudy, with a low around 73. Southeast wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 60%.
Thursday: Showers and thunderstorms likely, mainly before 1pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 85. Calm wind becoming southwest around 5 mph in the morning. Chance of precipitation is 70%.
Thursday Night: A 50 percent chance of showers and thunderstorms, mainly after 9pm. Mostly cloudy, with a low around 72. Light and variable wind.
Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Light and variable wind becoming southwest around 6 mph in the morning.
Friday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Saturday: Mostly sunny, with a high near 92.
Saturday Night: Mostly clear, with a low around 75.
Sunday: Mostly sunny, with a high near 94.
Sunday Night: Mostly clear, with a low around 76.
Monday: Mostly sunny, with a high near 96.
Monday Night: Mostly clear, with a low around 77.
Tuesday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Tuesday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Wednesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
WeatherWorld.com
