O'Fallon, IL

Weather

As of
Current Temperature

92degrees Fahrenheit

Feels like:104°

Hi:92°Lo:80°

Mostly Sunny

Live Weather Radar

O'Fallon, IL weather radar map

Current Weather Details

Windchill
104°
Daily Rain
0"
Dew point
76°
Monthly Rain
2.55"
Humidity
60%
Avg. Wind
S 4 mph
Pressure
29.81" →
Wind Gust
SSE 13 mph
Sunrise
5:51 AM
Moon
First Quarter
Sunset
8:20 PM
UV Index
7 (High)

Weather Forecast

  • Today

    Hi

    Sunny. High temperature around 90F. Dew point will be around 76F with an average humidity of 76%. Winds will be 3 mph from the SE.

  • Tonight

    Lo

    Mostly clear this evening then becoming partly cloudy. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 105 early this evening.

O'Fallon, IL 10-day weather forecast

AIR QUALITY

Air Quality Index
50|Moderate
Top Triggers:
pm25
View Today's Air Quality details for O'Fallon, IL

POLLEN COUNT & ALLERGY FORECAST

Pollen Count
4|Low-Medium
Predominant Pollen:
Grass, Plantain, Nettle
O'Fallon, IL Pollen forecast details

LIGHTNING MAP

Closest strike in the last 30 minutes:167.3 miles

No Lightning Nearby

O'Fallon, IL real-time lightning alerts & live Map