Hourly Weather Forecast - O'Fallon, MO

40% Chance of Rain

50% Chance of Light Rain

50% Chance Rain Showers

50% Chance Rain Showers

40% Chance of Light Rain

40% Chance of Light Rain

40% Chance of Light Rain

40% Chance of Light Rain

40% Chance Rain Showers

40% Chance Rain Showers

40% Chance Rain Showers

40% Chance Rain Showers

30% Chance of Light Rain

30% Chance of Light Rain

30% Chance of Light Rain

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 Rain Showers

40% Chance Rain Showers

40% Chance Rain Showers