Current Weather
2:22 AM
80°F
Clear
RealFeel® 89°
Very Warm
RealFeel®
89°
Heat Index
84°
Wind
S 2 mph
Wind Gusts
6 mph
Humidity
84%
Indoor Humidity
84% (Extremely Humid)
Dew Point
75° F
Pressure
↑ 29.96 in
Cloud Cover
0%
Visibility
10 mi
Cloud Ceiling
40000 ft
Day
7/1
95°Hi
RealFeel®
105°
Very Hot
RealFeel Shade™
98°
Hot
Hot and humid with hazy sun; check on sensitive groups and those without air conditioning
Max UV Index11.0 (Extreme)
AccuLumen Brightness Index™9 (Very Bright)
WindSW 8 mph
Wind Gusts17 mph
Probability of Precipitation5%
Probability of Thunderstorms1%
Precipitation0.00 in
Cloud Cover31%
Night
7/1
75°Lo
RealFeel®
79°
Pleasant
Mainly clear, warm and very humid
WindSSW 6 mph
Wind Gusts10 mph
Probability of Precipitation8%
Probability of Thunderstorms2%
Precipitation0.00 in
Cloud Cover11%
Sun & Moon
14 hrs 51 mins
Rise
5:41 AM
Set
8:32 PM
Waning Gibbous
Rise
10:04 PM
Set
7:59 AM
Temperature History
7/1High
Low
Forecast
95°
75°
Average
88°
67°
Last Year
88°
66°
Current Weather Conditions in O'Fallon
O'Fallon, Missouri is currently Clear with a temperature of 80°. The current RealFeel® Temperature is 89° (Very Warm) based on observed conditions including 84% humidity, 0% cloud cover, a UV index of 0, and winds of 2 mph. In shade, the RealFeel Shade™ is 89°. 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.