O'Fallon, IL Weather

As of

Weather Station:SCOTT AFB / MidAmerica Airport

Open weather station selector modal

68degrees Fahrenheit

Feels like:68°F

Hi: 76Lo: 42

Clear

Live Weather Radar

O'Fallon, IL weather radar map

Current Weather Details

Windchill
68°
Daily Rain
0"
Dew point
30°
Monthly Rain
1.47"
Humidity
24%
Avg. Wind
WSW 5 mph
Pressure
29.83" →
Wind Gust
5 mph
Sunrise
6:35 AM
Moon
Waxing Gibbous
Sunset
5:50 PM
UV Index
4 (Moderate)

Weather Forecast

  • Today

    Hi

    Sunny. High temperature around 75F. Dew point will be around 39F with an average humidity of 62%. Winds will be 8 mph from the SW.

  • Tonight

    Lo

    Clear. Lows in the upper 30s. West winds 5 to 10 mph becoming north after midnight.

O'Fallon, IL 10-day weather forecast

AIR QUALITY

30 | Fair

Top Triggers:pm25
Air quality data provided by Ambee
View Today's Air Quality details for O'Fallon, IL

POLLEN COUNT & ALLERGY FORECAST

6.4 Medium

Predominant Pollen:Cedar/Juniper
View the Pollen forecast details

LIGHTNING MAP

Closest strike in the last 30 minutes:829.3 miles

No Lightning Nearby

Real-time lightning alerts & live Map