Current Weather
8:35 AM
74°F
Sunny
RealFeel® 82°
Very Warm
RealFeel Shade™ 76°
Pleasant
RealFeel®
82°
RealFeel Shade™
76°
Max UV Index
3.4 (Moderate)
Wind
SSE 4 mph
Wind Gusts
12 mph
Humidity
77%
Indoor Humidity
77% (Very Humid)
Dew Point
67° F
Pressure
↓ 29.56 in
Cloud Cover
4%
Visibility
11 mi
Cloud Ceiling
40000 ft
Day
6/17
91°Hi
RealFeel®
93°
Hot
RealFeel Shade™
89°
Very Warm
Partly sunny and windy; a severe thunderstorm late this afternoon; storms can bring flash flooding, hail, damaging winds, and even a tornado
Max UV Index11.0 (Extreme)
AccuLumen Brightness Index™8 (Bright)
WindSW 16 mph
Wind Gusts44 mph
Probability of Precipitation55%
Probability of Thunderstorms55%
Precipitation0.20 in
Rain0.20 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover37%
Night
6/17
65°Lo
RealFeel®
65°
Pleasant
Heavy thunderstorms this evening; clouds breaking, humid; storms can bring flooding downpours, hail, damaging wind gusts, and an isolated tornado
WindW 8 mph
Wind Gusts24 mph
Probability of Precipitation86%
Probability of Thunderstorms59%
Precipitation0.30 in
Rain0.30 in
Hours of Precipitation2
Hours of Rain2
Cloud Cover63%
Sun & Moon
14 hrs 53 mins
Rise
5:37 AM
Set
8:30 PM
Waxing Crescent
Rise
8:16 AM
Set
11:14 PM
Temperature History
6/17High
Low
Forecast
91°
65°
Average
85°
64°
Last Year
87°
68°
Current Weather Conditions in O'Fallon
O'Fallon, Missouri is currently Sunny with a temperature of 74°. The current RealFeel® Temperature is 82° (Very Warm) based on observed conditions including 77% humidity, 4% cloud cover, a UV index of 3, 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.
