Current Weather
8:44 AM
66°F
Mostly cloudy
RealFeel® 67°
Pleasant
RealFeel Shade™ 64°
Pleasant
RealFeel®
67°
RealFeel Shade™
64°
Max UV Index
1.7 (Low)
Wind
SW 3 mph
Wind Gusts
8 mph
Humidity
70%
Indoor Humidity
66% (Slightly Humid)
Dew Point
56° F
Pressure
↓ 29.80 in
Cloud Cover
76%
Visibility
14 mi
Cloud Ceiling
10000 ft
Day
6/16
78°Hi
RealFeel®
80°
Pleasant
RealFeel Shade™
75°
Pleasant
Variably cloudy with a thunderstorm
Max UV Index10.0 (Very High)
AccuLumen Brightness Index™7 (Bright)
WindSW 9 mph
Wind Gusts22 mph
Probability of Precipitation55%
Probability of Thunderstorms33%
Precipitation0.12 in
Rain0.12 in
Hours of Precipitation2.5
Hours of Rain2.5
Cloud Cover50%
Night
6/16
60°Lo
RealFeel®
59°
Cool
Partly cloudy
WindS 7 mph
Wind Gusts9 mph
Probability of Precipitation10%
Probability of Thunderstorms2%
Precipitation0.00 in
Cloud Cover57%
Sun & Moon
14 hrs 53 mins
Rise
5:37 AM
Set
8:30 PM
Waxing Crescent
Rise
6:58 AM
Set
10:34 PM
Temperature History
6/16High
Low
Forecast
78°
60°
Average
85°
64°
Last Year
82°
70°
Current Weather Conditions in O'Fallon
O'Fallon, Missouri is currently Mostly cloudy with a temperature of 66°. The current RealFeel® Temperature is 67° (Pleasant) based on observed conditions including 70% humidity, 76% cloud cover, a UV index of 2, and winds of 3 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.