I-255 IL weather conditions near Saint Louis, Missouri
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: A Few Clouds 95°F 2025-06-21T13:53:00-05:00 
This Afternoon 2025-06-21, Hot. Sunny and hot, with a high near 98. Heat index values as high as 109. South wind 9 to 13 mph, with gusts as high as 21 mph.
Tonight 2025-06-21, Clear. Clear, with a low around 76. South wind 6 to 10 mph, with gusts as high as 21 mph.- Sunday 2025-06-22, Hot. Sunny and hot, with a high near 98. Heat index values as high as 105. South wind 7 to 11 mph.
Sunday Night 2025-06-22, Mostly Clear. Mostly clear, with a low around 76. South wind 5 to 9 mph.- Monday 2025-06-23, Hot. Sunny and hot, with a high near 97. South wind 3 to 7 mph.
- Monday Night 2025-06-23, Mostly Clear. Mostly clear, with a low around 76.
Tuesday 2025-06-24, Slight Chance T-storms. A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97.
Tuesday Night 2025-06-24, Partly Cloudy. Partly cloudy, with a low around 75.
Wednesday 2025-06-25, Mostly Sunny. Mostly sunny, with a high near 95.- Wednesday Night 2025-06-25, Partly Cloudy. Partly cloudy, with a low around 76.
Thursday 2025-06-26, Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96.
Thursday Night 2025-06-26, Slight Chance T-storms. A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.- Friday 2025-06-27, Slight Chance T-storms. A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.