I-55 weather conditions near Saint Louis, Missouri

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Mostly Cloudy 67°F 2025-09-22T07:51:00-05:00
• Today 2025-09-22, Chance Showers then Slight Chance T-storms. A chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm. Mostly cloudy, with a high near 79. South wind 5 to 7 mph. Chance of precipitation is 30%.
• Tonight 2025-09-22, Partly Cloudy. Partly cloudy, with a low around 68. Light southeast wind.
• Tuesday 2025-09-23, Slight Chance Showers then Chance Showers. A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 81. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 50%.
• Tuesday Night 2025-09-23, Showers. Showers and possibly a thunderstorm. Low around 68. Southwest wind around 5 mph becoming light and variable. Chance of precipitation is 80%.
• Wednesday 2025-09-24, Showers. Showers likely, then showers and possibly a thunderstorm after 1pm. High near 77. Southeast wind 6 to 10 mph becoming north in the afternoon. Chance of precipitation is 80%.
• Wednesday Night 2025-09-24, Chance Showers. A 50 percent chance of showers. Mostly cloudy, with a low around 63.
• Thursday 2025-09-25, Chance Showers. A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 76. Chance of precipitation is 40%.
• Thursday Night 2025-09-25, Slight Chance Showers. A 20 percent chance of showers. Partly cloudy, with a low around 61.
• Friday 2025-09-26, Mostly Sunny then Slight Chance Showers. A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 79.
• Friday Night 2025-09-26, Mostly Clear. Mostly clear, with a low around 60.
• Saturday 2025-09-27, Sunny. Sunny, with a high near 83.
• Saturday Night 2025-09-27, Mostly Clear. Mostly clear, with a low around 62.
• Sunday 2025-09-28, Sunny. Sunny, with a high near 84.