O'Fallon, IL

Weather

As of
Current Temperature

92degrees Fahrenheit

Feels like:109°

Hi:94°Lo:74°

Sunny

Live Weather Radar

O'Fallon, IL weather radar map

Current Weather Details

Windchill
109°
Daily Rain
0.05"
Dew point
79°
Monthly Rain
2.7"
Humidity
64%
Avg. Wind
SSW 17 mph
Pressure
29.85" →
Wind Gust
17 mph
Sunrise
5:37 AM
Moon
Waxing Gibbous
Sunset
8:28 PM
UV Index
11 (Extreme)

Weather Forecast

  • Today

    Hi

    Sunny with a chance of rain. Chance of precipitation 60%. High temperature around 94F. Dew point will be around 78F with an average humidity of 78%. Winds will be 7 mph from the S.

  • Tonight

    Lo

    Clear this evening then becoming partly cloudy. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 110 early this evening.

O'Fallon, IL 10-day weather forecast

AIR QUALITY

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

POLLEN COUNT & ALLERGY FORECAST

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

LIGHTNING MAP

Closest strike in the last 30 minutes:380.5 miles

No Lightning Nearby

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