I-55 weather conditions near Saint Louis, Missouri

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Overcast 50°F 2025-11-17T21:51:00-06:00
• Tonight 2025-11-17, Chance T-storms. A 30 percent chance of rain and thunderstorms, mainly before 11pm. Cloudy, with a low around 52. Southeast wind 8 to 10 mph, with gusts as high as 20 mph.
• Tuesday 2025-11-18, Slight Chance T-storms. A 20 percent chance of rain and thunderstorms, mainly between 10am and 1pm. Partly sunny, with a high near 73. South wind 5 to 8 mph becoming light and variable in the afternoon.
• Tuesday Night 2025-11-18, Mostly Cloudy. Mostly cloudy, with a low around 47. North wind around 6 mph becoming calm in the evening.
• Wednesday 2025-11-19, Mostly Cloudy. Mostly cloudy, with a high near 61. Calm wind.
• Wednesday Night 2025-11-19, Mostly Cloudy then Chance Rain. A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 49. Calm wind becoming southeast around 5 mph after midnight.
• Thursday 2025-11-20, Rain. Rain, with thunderstorms also possible after 9am. High near 66. Chance of precipitation is 80%.
• Thursday Night 2025-11-20, Rain. Rain and possibly a thunderstorm before midnight, then rain likely. Low around 55. Chance of precipitation is 80%.
• Friday 2025-11-21, Rain Likely. Rain likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 62. Chance of precipitation is 70%.
• Friday Night 2025-11-21, Chance Rain then Mostly Cloudy. A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 44.
• Saturday 2025-11-22, Mostly Sunny. Mostly sunny, with a high near 56.
• Saturday Night 2025-11-22, Partly Cloudy. Partly cloudy, with a low around 41.
• Sunday 2025-11-23, Mostly Sunny. Mostly sunny, with a high near 60.
• Sunday Night 2025-11-23, Partly Cloudy then Slight Chance Rain. A 20 percent chance of rain. Partly cloudy, with a low around 44.
• Monday 2025-11-24, Slight Chance Rain. A 20 percent chance of rain. Partly sunny, with a high near 60.