Current Weather
7:25 AM
63°F
Mostly sunny
RealFeel® 69°
Pleasant
RealFeel Shade™ 65°
Pleasant
RealFeel®
69°
RealFeel Shade™
65°
Max UV Index
2.0 (Low)
Wind
N 1 mph
Wind Gusts
1 mph
Humidity
87%
Indoor Humidity
72% (Slightly Humid)
Dew Point
59° F
Pressure
↔ 30.01 in
Cloud Cover
24%
Visibility
9 mi
Cloud Ceiling
40000 ft
Day
5/26
78°Hi
RealFeel®
81°
Pleasant
RealFeel Shade™
76°
Pleasant
Cloudy with a shower in spots late this afternoon
Max UV Index4.0 (Moderate)
AccuLumen Brightness Index™1 (Dark)
WindENE 7 mph
Wind Gusts13 mph
Probability of Precipitation55%
Probability of Thunderstorms16%
Precipitation0.02 in
Rain0.02 in
Hours of Precipitation0.5
Hours of Rain0.5
Cloud Cover95%
Night
5/26
64°Lo
RealFeel®
62°
Cool
Cloudy and humid with a thunderstorm in parts of the area
WindNNE 5 mph
Wind Gusts7 mph
Probability of Precipitation55%
Probability of Thunderstorms33%
Precipitation0.08 in
Rain0.08 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover95%
Sun & Moon
14 hrs 34 mins
Rise
5:43 AM
Set
8:17 PM
Waxing Gibbous
Rise
4:09 PM
Set
3:18 AM
Temperature History
5/26High
Low
Forecast
78°
64°
Average
79°
58°
Last Year
70°
51°
Current Weather Conditions in O'Fallon
O'Fallon, Missouri is currently Mostly sunny with a temperature of 63°. The current RealFeel® Temperature is 69° (Pleasant) based on observed conditions including 87% humidity, 24% cloud cover, a UV index of 2, and winds of 1 mph. In shade, the RealFeel Shade™ is 65°. 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.