Current Weather
2:44 PM
85°F
Mostly sunny
RealFeel® 92°
Hot
RealFeel Shade™ 85°
Very Warm
RealFeel®
92°
RealFeel Shade™
85°
Max UV Index
5.2 (Moderate)
Wind
S 6 mph
Wind Gusts
14 mph
Humidity
51%
Indoor Humidity
51% (Humid)
Dew Point
65° F
Pressure
↓ 29.76 in
Cloud Cover
20%
Visibility
26 mi
Cloud Ceiling
32900 ft
Day
4/17
85°Hi
RealFeel®
92°
Very Warm
RealFeel Shade™
85°
Very Warm
Turning out cloudy, breezy and very warm with a thunderstorm this afternoon
Max UV Index7.0 (High)
AccuLumen Brightness Index™6 (Medium)
WindS 13 mph
Wind Gusts27 mph
Probability of Precipitation55%
Probability of Thunderstorms33%
Precipitation0.10 in
Rain0.10 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover55%
Night
4/17
48°Lo
RealFeel®
44°
Chilly
Cooler; breezy with heavy thunderstorms, then rain; significant risk of damaging winds, destructive hail, tornadoes and flooding downpours
WindW 12 mph
Wind Gusts20 mph
Probability of Precipitation99%
Probability of Thunderstorms89%
Precipitation0.98 in
Rain0.98 in
Hours of Precipitation6
Hours of Rain6
Cloud Cover99%
Sun & Moon
13 hrs 18 mins
Rise
6:24 AM
Set
7:42 PM
New Moon
Rise
6:09 AM
Set
8:24 PM
Temperature History
4/17High
Low
Forecast
85°
48°
Average
68°
44°
Last Year
80°
53°
Current Weather Conditions in O'Fallon
O'Fallon, Missouri is currently Mostly sunny with a temperature of 85°. The current RealFeel® Temperature is 92° (Hot) based on observed conditions including 51% humidity, 20% cloud cover, a UV index of 5, and winds of 6 mph. In shade, the RealFeel Shade™ is 85°. 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.
