What is the air quality in Cary today?

The current Air Quality Index (AQI) in Cary is 41 (Good). PM2.5 concentration is 9.8 µg/m³.

What is the temperature in Cary right now?

The current temperature in Cary is 25.4°C (feels like 25.4°C). Humidity is 37.4% and wind speed is 45.1 km/h.

Is it safe to go outside in Cary?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 5.9 (High).

Air Quality in Cary, United States

Windy

25.4°C · 37.4% humidity

25.4°

Feels 25.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast Calibrated

3 9pm

41 12am

17 3am

8 6am

2 9am

1 12pm

0 3pm

0 6pm

Station readings 21h ago

AQI 2

PM2.5 0.4 µg/m³ · 21h ago

CAMS model adj -51

Air Quality Index Trend

3h · 1 stn

View full history →

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

37.4%

Humidity

45.1 km/h

Wind NNE

1018.4 hPa

Pressure

5.9

UV High

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

9.8 µg/m³

PM10

27.4 µg/m³

050100150200300500

What is the weather forecast for Cary?

Temperature & Precipitation

PM2.5 Trend

3h · 1 station

PM2.59.8 µg/m³ ✓ WHO

Good

PM1027.4 µg/m³

Good

UV INDEX5.9

High

Station readings (1 station within 25 km)

9.8

Median

9.8

Average

9.8

Low

9.8

High

PM2.5 µg/m³ · Model: 13.5 · Bias: +3.7

What is the 7-day forecast for Cary?

08-03

25.4° 17.7°

9.94 mm

08-04

34.0° 13.8°

08-05

30.1° 13.0°

2.25 mm

08-06

34.2° 21.2°

0.25 mm

08-07

30.0° 15.2°

0.5 mm

08-08

32.5° 15.7°

6.06 mm

08-09

32.2° 23.1°

Both models agree Avg diff: 4.0°C

Where are air quality stations near Cary?

Cary, Illinois, USA

1.0 km PM2.5: 7.9 µg/m³

Cary, Illinois, USA

1.0 km PM2.5: 7.0 µg/m³

–

a08-968758

24.0 km PM2.5: 0.0 µg/m³ PM10: 0.0 µg/m³

What cities are near Cary?

41 Algonquin 41 Crystal Lake 41 Lake in the Hills 41 Carpentersville 45 Lake Zurich 41 McHenry 41 Huntley 41 Round Lake 41 Elgin 41 Mundelein

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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 2026-08-08T05:44 UTC.