Hourly Weather Forecast - O'Fallon, MO

Mostly Clear

Mostly Clear

Partly Cloudy

Partly Cloudy

Mostly Clear

30% Chance Rain Showers

30% Chance Rain Showers

Mostly Sunny

Partly Cloudy

30% Chance Rain Showers

30% Chance Rain Showers

50% Chance of Storms

50% Chance of Storms

50% Chance of Storms

50% Chance of Storms

50% Chance of Storms

40% Chance Rain Showers

40% Chance Rain Showers

30% Chance Rain Showers

30% Chance Rain Showers

Partly Cloudy

Foggy

Foggy