Current Weather
12:59 PM
80°F
Sunny
RealFeel® 90°
Hot
RealFeel Shade™ 78°
Pleasant
RealFeel®
90°
RealFeel Shade™
78°
Heat Index
80°
Max UV Index
10.1 (Very High)
Wind
S 5 mph
Wind Gusts
11 mph
Humidity
50%
Indoor Humidity
50% (Slightly Humid)
Dew Point
60° F
Pressure
↔ 29.84 in
Cloud Cover
0%
Visibility
18 mi
Cloud Ceiling
40000 ft
Day
5/15
84°Hi
RealFeel®
90°
Very Warm
RealFeel Shade™
81°
Pleasant
Times of sun and clouds
Max UV Index10.0 (Very High)
AccuLumen Brightness Index™7 (Bright)
WindS 10 mph
Wind Gusts21 mph
Probability of Precipitation25%
Probability of Thunderstorms6%
Precipitation0.00 in
Cloud Cover44%
Night
5/15
67°Lo
RealFeel®
63°
Pleasant
Mostly cloudy and warm with a thunderstorm
WindS 7 mph
Wind Gusts14 mph
Probability of Precipitation55%
Probability of Thunderstorms33%
Precipitation0.10 in
Rain0.10 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover84%
Sun & Moon
14 hrs 17 mins
Rise
5:51 AM
Set
8:08 PM
Waning Crescent
Rise
4:36 AM
Set
7:15 PM
Temperature History
5/15High
Low
Forecast
84°
67°
Average
76°
54°
Last Year
89°
59°
Current Weather Conditions in O'Fallon
O'Fallon, Missouri is currently Sunny with a temperature of 80°. The current RealFeel® Temperature is 90° (Hot) based on observed conditions including 50% humidity, 0% cloud cover, a UV index of 10, and winds of 5 mph. In shade, the RealFeel Shade™ is 78°. 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.
