I-70 weather conditions near O Fallon, Missouri
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Partly Cloudy 63°F 2025-10-20T21:54:00-05:00 
Tonight 2025-10-20, Chance Sprinkles. A chance of sprinkles before 11pm. Mostly clear, with a low around 47. West wind 5 to 9 mph, with gusts as high as 30 mph.
Tuesday 2025-10-21, Sunny and Breezy. Sunny, with a high near 64. Breezy, with a west wind 6 to 11 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 36 mph.
Tuesday Night 2025-10-21, Clear. Clear, with a low around 42. West wind 9 to 13 mph, with gusts as high as 28 mph.
Wednesday 2025-10-22, Sunny. Sunny, with a high near 65. West wind 9 to 13 mph, with gusts as high as 22 mph.- Wednesday Night 2025-10-22, Clear. Clear, with a low around 40. West wind around 5 mph becoming calm in the evening.
- Thursday 2025-10-23, Sunny. Sunny, with a high near 65.
- Thursday Night 2025-10-23, Partly Cloudy. Partly cloudy, with a low around 44.
Friday 2025-10-24, Chance Showers. A 40 percent chance of showers. Mostly cloudy, with a high near 60.
Friday Night 2025-10-24, Chance Showers. A 50 percent chance of showers. Mostly cloudy, with a low around 50.
Saturday 2025-10-25, Chance Showers. A 50 percent chance of showers. Mostly cloudy, with a high near 62.
Saturday Night 2025-10-25, Chance Showers. A 40 percent chance of showers. Mostly cloudy, with a low around 51.
Sunday 2025-10-26, Partly Sunny. Partly sunny, with a high near 69.
Sunday Night 2025-10-26, Slight Chance Showers. A 20 percent chance of showers. Mostly cloudy, with a low around 52.
Monday 2025-10-27, Chance Showers. A 30 percent chance of showers. Partly sunny, with a high near 71.