I-64 weather conditions near O Fallon, Illinois

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Fair 30°F 2025-12-08T10:53:00-06:00
• Today 2025-12-08, Sunny. Sunny, with a high near 34. North wind around 5 mph becoming calm in the afternoon.
• Tonight 2025-12-08, Partly Cloudy. Partly cloudy, with a low around 26. Light and variable wind becoming south 5 to 10 mph in the evening.
• Tuesday 2025-12-09, Mostly Sunny. Mostly sunny, with a high near 52. Southwest wind 10 to 13 mph, with gusts as high as 23 mph.
• Tuesday Night 2025-12-09, Mostly Cloudy. Mostly cloudy, with a low around 44. South wind 14 to 16 mph becoming west after midnight. Winds could gust as high as 30 mph.
• Wednesday 2025-12-10, Partly Sunny and Breezy then Partly Sunny. Partly sunny, with a temperature falling to around 38 by 5pm. Breezy, with a northwest wind 11 to 20 mph, with gusts as high as 30 mph.
• Wednesday Night 2025-12-10, Mostly Cloudy. Mostly cloudy, with a low around 27.
• Thursday 2025-12-11, Slight Chance Snow then Mostly Cloudy. A 20 percent chance of snow before noon. Mostly cloudy, with a high near 37.
• Thursday Night 2025-12-11, Mostly Cloudy. Mostly cloudy, with a low around 23.
• Friday 2025-12-12, Partly Sunny. Partly sunny, with a high near 33.
• Friday Night 2025-12-12, Mostly Cloudy. Mostly cloudy, with a low around 9.
• Saturday 2025-12-13, Cold. Partly sunny and cold, with a high near 20.
• Saturday Night 2025-12-13, Mostly Cloudy. Mostly cloudy, with a low around 10.
• Sunday 2025-12-14, Mostly Sunny. Mostly sunny, with a high near 27.