Current Weather
9:03 AM
68°F
Sunny
RealFeel® 75°
Pleasant
RealFeel Shade™ 67°
Pleasant
RealFeel®
75°
RealFeel Shade™
67°
Max UV Index
4.1 (Moderate)
Wind
SSE 3 mph
Wind Gusts
9 mph
Humidity
75%
Indoor Humidity
75% (Slightly Humid)
Dew Point
60° F
Pressure
↓ 29.90 in
Cloud Cover
0%
Visibility
14 mi
Cloud Ceiling
33400 ft
Day
4/23
84°Hi
RealFeel®
85°
Very Warm
RealFeel Shade™
80°
Pleasant
Breezy and very warm with more sun than clouds
Max UV Index9.0 (Very High)
AccuLumen Brightness Index™8 (Bright)
WindS 15 mph
Wind Gusts30 mph
Probability of Precipitation5%
Probability of Thunderstorms1%
Precipitation0.00 in
Cloud Cover34%
Night
4/23
63°Lo
RealFeel®
57°
Cool
Mostly cloudy and warm; a heavy thunderstorm late
WindSSW 10 mph
Wind Gusts28 mph
Probability of Precipitation80%
Probability of Thunderstorms48%
Precipitation0.27 in
Rain0.27 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover76%
Sun & Moon
13 hrs 31 mins
Rise
6:16 AM
Set
7:47 PM
First Quarter
Rise
11:38 AM
Set
2:45 AM
Temperature History
4/23High
Low
Forecast
84°
63°
Average
70°
47°
Last Year
77°
47°
Current Weather Conditions in O'Fallon
O'Fallon, Missouri is currently Sunny with a temperature of 68°. The current RealFeel® Temperature is 75° (Pleasant) based on observed conditions including 75% humidity, 0% cloud cover, a UV index of 4, and winds of 3 mph. In shade, the RealFeel Shade™ is 67°. 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.