Current Weather
8:34 PM
74°F
Mostly cloudy
RealFeel® 78°
Pleasant
RealFeel®
78°
Wind
E 1 mph
Wind Gusts
3 mph
Humidity
81%
Indoor Humidity
81% (Very Humid)
Dew Point
68° F
Pressure
↑ 29.90 in
Cloud Cover
76%
Visibility
10 mi
Cloud Ceiling
24000 ft
Night
5/31
65°Lo
RealFeel®
63°
Pleasant
Partly cloudy and humid; a late-night thunderstorm; slow-moving downpours can cause flash flooding; watch for and avoid high water
WindESE 6 mph
Wind Gusts7 mph
Probability of Precipitation57%
Probability of Thunderstorms51%
Precipitation0.12 in
Rain0.12 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover47%
Sun & Moon
14 hrs 41 mins
Rise
5:40 AM
Set
8:21 PM
Full Moon
Rise
9:14 PM
Set
6:09 AM
Temperature History
5/31High
Low
Forecast
78°
65°
Average
81°
59°
Last Year
83°
57°
Current Weather Conditions in O'Fallon
O'Fallon, Missouri is currently Mostly cloudy with a temperature of 74°. The current RealFeel® Temperature is 78° (Pleasant) based on observed conditions including 81% humidity, 76% cloud cover, a UV index of 0, and winds of 1 mph. In shade, the RealFeel Shade™ is 78°. 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.