I-64 weather conditions near O Fallon, Illinois

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Partly Cloudy 71°F 2025-11-18T12:53:00-06:00
• This Afternoon 2025-11-18, Slight Chance T-storms. A 20 percent chance of rain and thunderstorms before 4pm. Partly sunny, with a high near 70. Southwest wind 6 to 9 mph becoming north.
• Tonight 2025-11-18, Mostly Cloudy. Mostly cloudy, with a low around 46. North wind 3 to 5 mph.
• Wednesday 2025-11-19, Cloudy. Cloudy, with a high near 58. Light and variable wind.
• Wednesday Night 2025-11-19, Mostly Cloudy then Chance Rain. A 40 percent chance of rain after midnight. Cloudy, with a low around 49. Light and variable wind.
• Thursday 2025-11-20, Rain Likely. Rain likely before 9am, then rain likely and possibly a thunderstorm between 9am and noon, then rain likely after noon. Cloudy, with a high near 62. Southeast wind 3 to 8 mph. Chance of precipitation is 70%.
• Thursday Night 2025-11-20, Rain Likely. Rain likely and possibly a thunderstorm. Cloudy, with a low around 52. Chance of precipitation is 70%.
• Friday 2025-11-21, Rain. Rain. High near 59. Chance of precipitation is 80%.
• Friday Night 2025-11-21, Chance Rain then Slight Chance Rain. A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 43.
• Saturday 2025-11-22, Mostly Sunny. Mostly sunny, with a high near 57.
• Saturday Night 2025-11-22, Mostly Clear. Mostly clear, with a low around 39.
• Sunday 2025-11-23, Sunny. Sunny, with a high near 60.
• Sunday Night 2025-11-23, Partly Cloudy. Partly cloudy, with a low around 42.
• Monday 2025-11-24, Slight Chance Rain. A 20 percent chance of rain. Partly sunny, with a high near 61.