Air Quality in Joliet, United States
Windy
11.9°C · 67.5% humidity
11.9°
Feels 11.9°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Joliet's air quality — share it
AQI Forecast
27
1pm
27
27
22
4pm
23
24
25
7pm
24
24
24
10pm
25
27
27
1am
27
27
27
4am
27
27
27
7am
25
25
25
10am
25
25
Air Quality Index Trend
47h · 4 stnJoliet's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Joliet is 1.1× the WHO annual guideline of 5 µg/m³.
67.5%
Humidity
80.4 km/h
Wind NNE
1027.6 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.3 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Joliet?
Temperature & Precipitation
PM2.5 Trend
47h · 4 stationsPM2.55.3 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX9.4
Very High
Station readings (1 station within 25 km)
5.3
Median
5.3
Average
5.3
Low
5.3
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +4.7
What is the 7-day forecast for Joliet?
05-28
25.9° 12.1°
22.0 mm
05-29
28.8° 6.2°
05-30
23.4° 12.5°
0.69 mm
05-31
29.7° 13.1°
0.13 mm
06-01
30.0° 15.1°
06-02
21.4° 13.3°
7.44 mm
06-03
29.2° 22.0°
Both models agree
Avg diff: 4.9°C
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-28T21:47 UTC.