Hourly Weather Forecast - O'Fallon, MO

Cloudy

Mostly Cloudy

Mostly Cloudy

Partly Cloudy

Mostly Cloudy

Mostly Cloudy

Cloudy

30% Chance of Light Rain

40% Chance of Light Rain

40% Chance of Light Rain

40% Chance of Light Rain

40% Chance of Light Rain

40% Chance of Light Rain

50% Chance of Rain

60% Chance of Rain

60% Chance of Rain

60% Chance Rain Showers

60% Chance Rain Showers

40% Chance Rain Showers

30% Chance Frozen Mix

Windy

Windy

30% Chance of Flurries