O'Fallon Weather Prepare for the Day Ahead

clear sky

In O'Fallon today expect clear sky. The temperature will hit a high of 71°F (feels like 71°F). Humidity sits at 82%, with winds up to 8.99 mph.

overcast clouds

In O'Fallon tomorrow expect overcast clouds. The temperature will hit a high of 76°F. Humidity sits at 0%, with winds up to 0 mph.