Hourly Weather Forecast - O'Fallon, MO

40% Chance Rain Showers

40% Chance Rain Showers

50% Chance Rain Showers

50% Chance Rain Showers

50% Chance Rain Showers

60% Chance Rain Showers

70% Chance of Light Rain

70% Chance of Light Rain

80% Chance of Light Rain

70% Chance of Storms

70% Chance of Storms

70% Chance of Storms

70% Chance of Storms

70% Chance of Storms

60% Chance of Storms

60% Chance of Storms

50% Chance of Light Rain

50% Chance of Rain

60% Chance of Rain

60% Chance of Rain

60% Chance of Rain

60% Chance of Rain

60% Chance of Rain