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: Fair 73°F 2025-07-13T00:53:00-05:00 
Overnight 2025-07-13, Mostly Cloudy. Mostly cloudy, with a low around 73. Calm wind.Sunday 2025-07-13, Slight Chance T-storms then Showers Likely. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 87. Light and variable wind. Chance of precipitation is 60%.
Sunday Night 2025-07-13, Showers Likely then Patchy Fog. Showers likely and possibly a thunderstorm before 7pm, then a slight chance of showers and thunderstorms between 7pm and 10pm. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 71. Light southwest wind. Chance of precipitation is 60%.
Monday 2025-07-14, Patchy Fog then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.
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. Light southeast wind.Tuesday 2025-07-15, Partly Sunny then Chance T-storms. A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90.
- Tuesday Night 2025-07-15, Slight Chance T-storms. A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 74.
Wednesday 2025-07-16, Chance T-storms. A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93.
Wednesday Night 2025-07-16, Chance T-storms. A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 74.Thursday 2025-07-17, Partly Sunny then Chance T-storms. A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93.
Thursday Night 2025-07-17, Chance T-storms. A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.Friday 2025-07-18, Partly Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Friday Night 2025-07-18, Slight Chance T-storms. A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.Saturday 2025-07-19, Mostly Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.