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April 2026 Weather | O'Fallon, Missouri

Today 4/27
Stormy Weather
Day 79°
Night 52°
96
Tue 4/28
Sunny with a Chance of Thunderstorms
Day 64°
Night 48°
55
Wed 4/29
Cloudy Weather
Day 66°
Night 37°
9
Thu 4/30
Cloudy Weather
Day 64°
Night 48°
11

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