🌤️ New York, NY 🌤️ Los Angeles, CA Chicago, IL 65° 🌤️ Houston, TX 🌤️ Miami, FL Phoenix, AZ 112° Seattle, WA 71° 🌤️ Denver, CO Toronto, ON 66° Vancouver, BC 70°
WeatherLiveIllinoisWinfieldAir Quality

Winfield, IL Air Quality

← Winfield

Air quality in Winfield

The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.

US AQI · EPA
54
Moderate
PM2.5
13.7 µg/m³
WHO guideline 15
PM10
14 µg/m³
WHO guideline 45
NO₂ · O₃
32 · 42
µg/m³

Hour by hour (12h)

US EPA AQI
12:00 AM 💨 PM2.5 13.7 µg/m³
54Moderate
1:00 AM 💨 PM2.5 12.6 µg/m³
52Moderate
2:00 AM 💨 PM2.5 11.4 µg/m³
48Good
3:00 AM 💨 PM2.5 9.9 µg/m³
41Good
4:00 AM 💨 PM2.5 9.1 µg/m³
38Good
5:00 AM 💨 PM2.5 8.1 µg/m³
35Good
6:00 AM 💨 PM2.5 8.1 µg/m³
36Good
7:00 AM 💨 PM2.5 8.7 µg/m³
36Good
8:00 AM 💨 PM2.5 10.2 µg/m³
43Good
9:00 AM 💨 PM2.5 10.5 µg/m³
44Good
10:00 AM 💨 PM2.5 10.5 µg/m³
44Good
11:00 AM 💨 PM2.5 9.7 µg/m³
40Good

Next few days

daily max · US EPA AQI
Tue 💨 Moderate · UV High
90
Wed 💨 Moderate · UV High
54
Thu 💨 Moderate · UV High
53
Fri 💨 Moderate · UV High
78
Sat 💨 Moderate · UV High
76
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 12:36 AM