Weather conditions near O Fallon
2026-03-27
Roadnow
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7 day weather forecast
Current condition: Overcast and Breezy 53°F 2026-03-27T01:53:00-05:00 
Overnight 2026-03-27, Showers Likely. Detail...Friday 2026-03-27, Chance Showers then Partly Sunny. Detail...
Friday Night 2026-03-27, Mostly Clear. Detail...
Saturday 2026-03-28, Sunny. Detail...
Saturday Night 2026-03-28, Partly Cloudy. Detail...
Sunday 2026-03-29, Partly Sunny. Detail...- Sunday Night 2026-03-29, Partly Cloudy. Detail...
Monday 2026-03-30, Mostly Sunny. Detail...- Monday Night 2026-03-30, Partly Cloudy. Detail...
Tuesday 2026-03-31, Partly Sunny then Slight Chance Rain. Detail...
Tuesday Night 2026-03-31, Slight Chance T-storms then Chance Rain. Detail...
Wednesday 2026-04-01, Chance T-storms. Detail...Wednesday Night 2026-04-01, Chance T-storms then Rain Likely. Detail...
Thursday 2026-04-02, Rain Likely. Detail...