I-255 IL weather conditions near Caseyville, Illinois
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 72°F 2025-06-16T22:53:00-05:00 
Tonight 2025-06-16, Mostly Cloudy. Mostly cloudy, with a low around 71. Calm wind.
Tuesday 2025-06-17, Decreasing Clouds. Mostly cloudy, then gradually becoming sunny, with a high near 89. Calm wind becoming southwest around 6 mph in the afternoon.Tuesday Night 2025-06-17, Slight Chance T-storms then Mostly Cloudy. A slight chance of showers and thunderstorms between 9pm and midnight. Partly cloudy, with a low around 72. South wind around 6 mph. Chance of precipitation is 20%.
Wednesday 2025-06-18, Chance T-storms then Heavy Rain. A chance of showers, then showers and thunderstorms likely after 10am. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 87. Southwest wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Wednesday Night 2025-06-18, Chance T-storms. A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 69. West wind 6 to 10 mph.
Juneteenth 2025-06-19, Sunny. Sunny, with a high near 87.
Thursday Night 2025-06-19, Mostly Clear. Mostly clear, with a low around 69.- Friday 2025-06-20, Sunny. Sunny, with a high near 91.
- Friday Night 2025-06-20, Mostly Clear. Mostly clear, with a low around 75.
- Saturday 2025-06-21, Sunny. Sunny, with a high near 96.
- Saturday Night 2025-06-21, Mostly Clear. Mostly clear, with a low around 77.
Sunday 2025-06-22, Hot. Sunny and hot, with a high near 97.- Sunday Night 2025-06-22, Mostly Clear. Mostly clear, with a low around 76.
Monday 2025-06-23, Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.