I-55 weather conditions near Saint Louis, Missouri

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: A Few Clouds 74°F 2025-09-22T20:51:00-05:00
• Tonight 2025-09-22, Mostly Clear then Patchy Fog. Patchy fog after 3am. Otherwise, partly cloudy, with a low around 65. Light south wind.
• Tuesday 2025-09-23, Patchy Fog then Showers Likely. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 60%.
• Tuesday Night 2025-09-23, Showers. Showers and possibly a thunderstorm. Low around 67. Light and variable wind becoming northeast around 6 mph after midnight. Chance of precipitation is 80%.
• Wednesday 2025-09-24, Showers Likely. Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. Northeast wind 6 to 9 mph becoming north in the afternoon. Chance of precipitation is 70%.
• Wednesday Night 2025-09-24, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. North wind 5 to 7 mph. Chance of precipitation is 30%.
• Thursday 2025-09-25, Chance Showers. A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 78.
• Thursday Night 2025-09-25, Mostly Clear. Mostly clear, with a low around 58.
• Friday 2025-09-26, Sunny. Sunny, with a high near 82.
• Friday Night 2025-09-26, Clear. Clear, with a low around 58.
• Saturday 2025-09-27, Sunny. Sunny, with a high near 86.
• Saturday Night 2025-09-27, Mostly Clear. Mostly clear, with a low around 60.
• Sunday 2025-09-28, Sunny. Sunny, with a high near 86.
• Sunday Night 2025-09-28, Mostly Clear. Mostly clear, with a low around 61.
• Monday 2025-09-29, Sunny. Sunny, with a high near 85.