I-55 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: Mostly Cloudy 86°F 2025-09-21T14:51:00-05:00 
This Afternoon 2025-09-21, T-storms Likely. Showers and thunderstorms likely, mainly after 5pm. Sunny, with a high near 85. Southwest wind around 7 mph. Chance of precipitation is 60%.
Tonight 2025-09-21, T-storms. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11pm. Low around 65. Southwest wind 5 to 7 mph becoming southeast after midnight. Chance of precipitation is 80%.Monday 2025-09-22, Showers then Scattered T-storms. Showers and possibly a thunderstorm, mainly before 10am, then scattered showers and thunderstorms after 10am. High near 78. Southwest wind around 7 mph. Chance of precipitation is 80%.
Monday Night 2025-09-22, Chance T-storms then Chance Showers. A chance of showers and thunderstorms before 4am, then a slight chance of showers. Increasing clouds, with a low around 66. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Tuesday 2025-09-23, Showers Likely. A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 60%.
Tuesday Night 2025-09-23, Showers Likely. Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.
Wednesday 2025-09-24, Showers Likely. Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 70%.
Wednesday Night 2025-09-24, Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
Thursday 2025-09-25, Chance Showers. A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 74. Chance of precipitation is 50%.
Thursday Night 2025-09-25, Slight Chance Showers. A 20 percent chance of showers. Partly cloudy, with a low around 59.
Friday 2025-09-26, Slight Chance Showers. A 20 percent chance of showers. Mostly sunny, with a high near 76.
Friday Night 2025-09-26, Mostly Clear. Mostly clear, with a low around 58.
Saturday 2025-09-27, Sunny. Sunny, with a high near 80.- Saturday Night 2025-09-27, Mostly Clear. Mostly clear, with a low around 59.
- Sunday 2025-09-28, Sunny. Sunny, with a high near 81.