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: Partly Cloudy 72°F 2025-09-20T17:53:00-05:00 
Tonight 2025-09-20, Chance T-storms. A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 67. East wind around 5 mph becoming calm after midnight.
Sunday 2025-09-21, Chance T-storms. A 50 percent chance of showers and thunderstorms, mainly after 10am. Mostly sunny, with a high near 85. Southwest wind 3 to 7 mph.
Sunday Night 2025-09-21, T-storms. Showers and thunderstorms. Low around 67. Southwest wind around 6 mph. Chance of precipitation is 80%.Monday 2025-09-22, T-storms then Showers. Showers and thunderstorms before 8am, then showers and possibly a thunderstorm after 8am. High near 84. South wind 5 to 7 mph. Chance of precipitation is 80%.
Monday Night 2025-09-22, Chance T-storms then Chance Showers. A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening.
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. Chance of precipitation is 70%.
Tuesday Night 2025-09-23, Showers Likely. Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Wednesday 2025-09-24, Showers Likely. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.
Wednesday Night 2025-09-24, Chance T-storms. A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Thursday 2025-09-25, Chance Showers. A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 74. Chance of precipitation is 50%.
Thursday Night 2025-09-25, Chance Showers. A 30 percent chance of showers. Mostly cloudy, with a low around 60.
Friday 2025-09-26, Chance Showers. A 30 percent chance of showers. Mostly sunny, with a high near 77.
Friday Night 2025-09-26, Partly Cloudy. Partly cloudy, with a low around 60.- Saturday 2025-09-27, Mostly Sunny. Mostly sunny, with a high near 79.