I-55 weather conditions near Saint Louis, Missouri

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Rain 68°F 2025-09-22T01:51:00-05:00
• Overnight 2025-09-22, Showers. Showers. Low around 65. Calm wind becoming south around 5 mph. Chance of precipitation is 100%.
• Monday 2025-09-22, Chance Showers then Slight Chance T-storms. A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Southeast wind around 6 mph becoming southwest in the afternoon. Chance of precipitation is 40%.
• Monday Night 2025-09-22, Partly Cloudy. Partly cloudy, with a low around 67. 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 80. Calm wind becoming southwest 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. Light southeast wind. Chance of precipitation is 80%.
• Wednesday 2025-09-24, Showers. Showers likely, then showers and possibly a thunderstorm after 1pm. High near 77. 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 75. 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 60.
• Friday 2025-09-26, Mostly Sunny then Slight Chance Showers. A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 77.
• Friday Night 2025-09-26, Mostly Clear. Mostly clear, with a low around 59.
• Saturday 2025-09-27, Sunny. Sunny, with a high near 82.
• Saturday Night 2025-09-27, Mostly Clear. Mostly clear, with a low around 61.
• Sunday 2025-09-28, Sunny. Sunny, with a high near 83.