Current Weather
8:34 PM
77°F
Mostly cloudy
RealFeel® 84°
Very Warm
RealFeel Shade™ 84°
Very Warm
RealFeel®
84°
RealFeel Shade™
84°
Max UV Index
0.0 (Low)
Wind
NE 1 mph
Wind Gusts
2 mph
Humidity
91%
Indoor Humidity
91% (Extremely Humid)
Dew Point
74° F
Pressure
↑ 29.85 in
Cloud Cover
76%
Visibility
9 mi
Cloud Ceiling
17200 ft
Night
6/27
71°Lo
RealFeel®
75°
Pleasant
Humid with a thunderstorm in spots; overcast this evening, then partly cloudy late
WindSSE 6 mph
Wind Gusts7 mph
Probability of Precipitation55%
Probability of Thunderstorms50%
Precipitation0.27 in
Rain0.27 in
Hours of Precipitation3.5
Hours of Rain3.5
Cloud Cover79%
Sun & Moon
14 hrs 52 mins
Rise
5:40 AM
Set
8:32 PM
Waxing Gibbous
Rise
7:09 PM
Set
4:06 AM
Temperature History
6/27High
Low
Forecast
85°
71°
Average
88°
66°
Last Year
91°
73°
Current Weather Conditions in O'Fallon
O'Fallon, Missouri is currently Mostly cloudy with a temperature of 77°. The current RealFeel® Temperature is 84° (Very Warm) based on observed conditions including 91% humidity, 76% cloud cover, a UV index of 0, and winds of 1 mph. In shade, the RealFeel Shade™ is 84°. AccuWeather's MinuteCast® provides minute-by-minute precipitation forecasts for O'Fallon, powered by forecasting systems and proprietary technology developed by AccuWeather meteorologists since 1962.