I-64 weather conditions near O Fallon, Illinois

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Fair 70°F 2025-06-29T03:53:00-05:00
• Today 2025-06-29, Slight Chance T-storms. A slight chance of showers between 9am and 10am, then a slight chance of showers and thunderstorms after 10am. Mostly cloudy, with a high near 87. South wind 3 to 7 mph. Chance of precipitation is 20%.
• Tonight 2025-06-29, Slight Chance T-storms then Chance T-storms. A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. South wind 5 to 7 mph becoming light and variable.
• Monday 2025-06-30, Chance T-storms. A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind 6 to 8 mph.
• Monday Night 2025-06-30, Showers Likely then Slight Chance T-storms. Showers likely and possibly a thunderstorm before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 70. West wind 3 to 7 mph. Chance of precipitation is 60%.
• Tuesday 2025-07-01, Sunny. Sunny, with a high near 87. Northwest wind 5 to 7 mph.
• Tuesday Night 2025-07-01, Mostly Clear. Mostly clear, with a low around 66.
• Wednesday 2025-07-02, Sunny. Sunny, with a high near 89.
• Wednesday Night 2025-07-02, Mostly Clear. Mostly clear, with a low around 69.
• Thursday 2025-07-03, Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 92.
• Thursday Night 2025-07-03, Mostly Clear. Mostly clear, with a low around 72.
• Independence Day 2025-07-04, Slight Chance Showers then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.
• Friday Night 2025-07-04, Partly Cloudy. Partly cloudy, with a low around 73.
• Saturday 2025-07-05, Slight Chance Showers then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.