What is the air quality in Joliet today?

The current Air Quality Index (AQI) in Joliet is 14 (Good). PM2.5 concentration is 3.4 µg/m³.

What is the temperature in Joliet right now?

The current temperature in Joliet is 11.8°C (feels like 11.8°C). Humidity is 77.5% and wind speed is 39.2 km/h.

Is it safe to go outside in Joliet?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Joliet, United States

Cloudy

11.8°C · 77.5% humidity

11.8°

Feels 11.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

24 9pm

14 12am

20 3am

23 6am

24 9am

24 12pm

25 3pm

25 6pm

Air Quality Index Trend

47h · 6 stn

View full history →

Joliet's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

77.5%

Humidity

39.2 km/h

Wind NNW

1012.3 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

3.4 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Joliet?

Temperature & Precipitation

PM2.5 Trend

47h · 6 stations

PM2.53.4 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (1 station within 25 km)

3.4

Median

3.4

Average

3.4

Low

3.4

High

PM2.5 µg/m³ · Model: 6.15 · Bias: +2.8

What is the 7-day forecast for Joliet?

06-09

31.1° 11.8°

0.19 mm

06-10

22.3° 19.4°

27.69 mm

06-11

24.9° 15.6°

1.31 mm

06-12

29.1° 20.4°

11.63 mm

06-13

27.5° 22.7°

5.69 mm

06-14

30.5° 15.0°

0.13 mm

06-15

32.8° 23.7°

0.44 mm

Both models agree Avg diff: 5.5°C

Where are air quality stations near Joliet?

Joliet, Illinois, USA

2.8 km PM2.5: 2.6 µg/m³

Joliet, Illinois, USA

2.8 km PM2.5: 3.4 µg/m³

What cities are near Joliet?

14 Crest Hill 14 Lockport 14 Shorewood 14 New Lenox 13 Romeoville 15 Homer Glen 15 Mokena 15 Goodings Grove 14 Lemont 13 Bolingbrook

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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 2026-06-09T05:12 UTC.