Average change in
Temperature
Average change in high temperature day-to-day
Last Month:
6.3°
Last Year:
6.1°
Average change in low temperature day-to-day
Last Month:
8.9°
Last Year:
7.7°
Average change in
Precipitation
Chance of dry day after a precip day
Last Month:
57%
Last Year:
60%
Chance of precip day after a dry day
Last Month:
25%
Last Year:
22%
ForecastAdvisor Fact
It rained or snowed 90% of the time in O Fallon last month when The Weather Channel's text forecasts called for precipitation, and 3% of the time when they did not.