Current Weather
10:01 AM
75°F
Sunny
RealFeel® 86°
Very Warm
RealFeel Shade™ 74°
Pleasant
RealFeel®
86°
RealFeel Shade™
74°
Max UV Index
7.6 (Very High)
Wind
NW 3 mph
Wind Gusts
8 mph
Humidity
53%
Indoor Humidity
53% (Slightly Humid)
Dew Point
57° F
Pressure
↔ 29.75 in
Cloud Cover
4%
Visibility
24 mi
Cloud Ceiling
34000 ft
Day
6/18
76°Hi
RealFeel®
86°
Pleasant
RealFeel Shade™
74°
Pleasant
Clouds and some glimpses of blue sky with a thunderstorm in spots
Max UV Index5.0 (Moderate)
AccuLumen Brightness Index™5 (Medium)
WindNW 8 mph
Wind Gusts16 mph
Probability of Precipitation55%
Probability of Thunderstorms33%
Precipitation0.08 in
Rain0.08 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover53%
Night
6/18
58°Lo
RealFeel®
58°
Cool
Partly cloudy with a passing shower
WindWNW 5 mph
Wind Gusts7 mph
Probability of Precipitation55%
Probability of Thunderstorms11%
Precipitation0.04 in
Rain0.04 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover26%
Sun & Moon
14 hrs 53 mins
Rise
5:37 AM
Set
8:30 PM
Waxing Crescent
Rise
9:33 AM
Set
11:46 PM
Temperature History
6/18High
Low
Forecast
76°
58°
Average
86°
64°
Last Year
85°
68°
Current Weather Conditions in O'Fallon
O'Fallon, Missouri is currently Sunny with a temperature of 75°. The current RealFeel® Temperature is 86° (Very Warm) based on observed conditions including 53% humidity, 4% cloud cover, a UV index of 8, and winds of 3 mph. In shade, the RealFeel Shade™ is 74°. 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.