Current Weather
3:45 PM
82°F
Partly sunny
RealFeel® 96°
Hot
RealFeel Shade™ 88°
Very Warm
RealFeel®
96°
RealFeel Shade™
88°
Heat Index
87°
Max UV Index
4.8 (Moderate)
Wind
SW 3 mph
Wind Gusts
6 mph
Humidity
70%
Indoor Humidity
70% (Extremely Humid)
Dew Point
72° F
Pressure
↔ 29.99 in
Cloud Cover
46%
Visibility
16 mi
Cloud Ceiling
21700 ft
Day
6/24
84°Hi
RealFeel®
96°
Hot
RealFeel Shade™
88°
Very Warm
Clouds and breaks of sun
Max UV Index8.0 (Very High)
AccuLumen Brightness Index™5 (Medium)
WindSSW 7 mph
Wind Gusts12 mph
Probability of Precipitation49%
Probability of Thunderstorms29%
Precipitation0.00 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover61%
Night
6/24
66°Lo
RealFeel®
64°
Pleasant
Mostly cloudy and humid with a thunderstorm in spots
WindWSW 6 mph
Wind Gusts7 mph
Probability of Precipitation55%
Probability of Thunderstorms33%
Precipitation0.08 in
Rain0.08 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover82%
Sun & Moon
14 hrs 53 mins
Rise
5:39 AM
Set
8:32 PM
Waxing Gibbous
Rise
4:06 PM
Set
2:13 AM
Temperature History
6/24High
Low
Forecast
84°
66°
Average
87°
66°
Last Year
95°
75°
Current Weather Conditions in O'Fallon
O'Fallon, Missouri is currently Partly sunny with a temperature of 82°. The current RealFeel® Temperature is 96° (Hot) based on observed conditions including 70% humidity, 46% cloud cover, a UV index of 5, and winds of 3 mph. In shade, the RealFeel Shade™ is 88°. 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.