Current Weather
12:56 AM
76°F
Partly cloudy
RealFeel® 76°
Pleasant
RealFeel®
76°
Wind
SSE 4 mph
Wind Gusts
9 mph
Humidity
72%
Indoor Humidity
72% (Humid)
Dew Point
66° F
Pressure
↑ 29.86 in
Cloud Cover
31%
Visibility
12 mi
Cloud Ceiling
20000 ft
Day
5/18
80°Hi
RealFeel®
83°
Very Warm
RealFeel Shade™
80°
Pleasant
Clouds and sun with a thunderstorm or two, humid; breezy in the morning
Max UV Index5.0 (Moderate)
AccuLumen Brightness Index™5 (Medium)
WindS 13 mph
Wind Gusts28 mph
Probability of Precipitation88%
Probability of Thunderstorms79%
Precipitation0.34 in
Rain0.34 in
Hours of Precipitation4
Hours of Rain4
Cloud Cover70%
Night
5/18
71°Lo
RealFeel®
65°
Pleasant
Cloudy, very warm and humid; a strong late-night thunderstorm; thunderstorms can bring hail and damaging winds
WindS 10 mph
Wind Gusts23 mph
Probability of Precipitation85%
Probability of Thunderstorms81%
Precipitation0.30 in
Rain0.30 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover95%
Sun & Moon
14 hrs 23 mins
Rise
5:48 AM
Set
8:11 PM
Waxing Crescent
Rise
6:58 AM
Set
11:01 PM
Temperature History
5/18High
Low
Forecast
80°
71°
Average
77°
55°
Last Year
78°
56°
Current Weather Conditions in O'Fallon
O'Fallon, Missouri is currently Partly cloudy with a temperature of 76°. The current RealFeel® Temperature is 76° (Pleasant) based on observed conditions including 72% humidity, 31% cloud cover, a UV index of 0, and winds of 4 mph. In shade, the RealFeel Shade™ is 76°. 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.
