I-255 IL weather conditions near Saint Louis, Missouri
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Current Weather Conditions
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7 day weather forecast
Current condition: Fair 89°F 2025-07-10T11:53:00-05:00 - This Afternoon 2025-07-10, Mostly Sunny. Mostly sunny, with a high near 93. South wind 3 to 5 mph.
Tonight 2025-07-10, Mostly Clear. Mostly clear, with a low around 72. South wind around 5 mph becoming calm in the evening.Friday 2025-07-11, Sunny then Isolated T-storms. Isolated showers and thunderstorms between 4pm and 5pm. Mostly sunny, with a high near 95. Heat index values as high as 104. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 20%.
Friday Night 2025-07-11, Chance T-storms. A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 74. South wind 3 to 7 mph.Saturday 2025-07-12, Slight Chance T-storms then Chance T-storms. A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 93. Southwest wind 5 to 8 mph.
Saturday Night 2025-07-12, Chance T-storms. A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 73.
Sunday 2025-07-13, Chance T-storms. A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 90.
Sunday Night 2025-07-13, Slight Chance T-storms. A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 71.Monday 2025-07-14, Mostly Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
- Monday Night 2025-07-14, Slight Chance T-storms. A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 72.
- Tuesday 2025-07-15, Chance T-storms. A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 93.
- Tuesday Night 2025-07-15, Chance T-storms. A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Wednesday 2025-07-16, Chance Showers then Chance T-storms. A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.