Current Weather
6:42 AM
63°F
Mostly cloudy
RealFeel® 65°
Pleasant
RealFeel Shade™ 64°
Pleasant
RealFeel®
65°
RealFeel Shade™
64°
Max UV Index
0.4 (Low)
Wind
NNW 1 mph
Wind Gusts
3 mph
Humidity
87%
Indoor Humidity
72% (Slightly Humid)
Dew Point
59° F
Pressure
↑ 29.94 in
Cloud Cover
78%
Visibility
9 mi
Cloud Ceiling
2600 ft
Day
5/23
76°Hi
RealFeel®
78°
Pleasant
RealFeel Shade™
75°
Pleasant
Cloudy and warmer
Max UV Index3.0 (Moderate)
AccuLumen Brightness Index™2 (Dark)
WindWSW 5 mph
Wind Gusts6 mph
Probability of Precipitation25%
Probability of Thunderstorms6%
Precipitation0.00 in
Cloud Cover95%
Night
5/23
62°Lo
RealFeel®
60°
Cool
A couple of showers and a thunderstorm; cloudy this evening, then partly cloudy late
WindWSW 5 mph
Wind Gusts6 mph
Probability of Precipitation88%
Probability of Thunderstorms35%
Precipitation0.28 in
Rain0.28 in
Hours of Precipitation4
Hours of Rain4
Cloud Cover82%
Sun & Moon
14 hrs 30 mins
Rise
5:45 AM
Set
8:15 PM
First Quarter
Rise
1:00 PM
Set
2:11 AM
Temperature History
5/23High
Low
Forecast
76°
62°
Average
78°
57°
Last Year
72°
44°
Current Weather Conditions in O'Fallon
O'Fallon, Missouri is currently Mostly cloudy with a temperature of 63°. The current RealFeel® Temperature is 65° (Pleasant) based on observed conditions including 87% humidity, 78% cloud cover, a UV index of 0, and winds of 1 mph. In shade, the RealFeel Shade™ is 64°. 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.