Air Quality in Chapel Hill, United States

Partly Cloudy
26.4°C · 58.5% humidity
26.4°
Feels 26.4°
43
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast
25 2pm
25
25
43 5pm
38
36
34 8pm
32
30
29 11pm
29
26
26 2am
26
25
25 5am
25
25
25 8am
25
25
25 11am
25
25
AD 728×90

Air Quality Index Trend

42h · 5 stn

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

58.5%
Humidity
32.6 km/h
Wind SE
1012.9 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
43
10.33 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

42h · 5 stations
PM2.510.33 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX5.9
High
AD 300×250
10.33
Median
11.02
Average
5.5
Low
15.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -4.1
07-21
32.0° 21.2°
9.25 mm
07-22
35.8° 20.8°
7.81 mm
07-23
35.5° 20.1°
1.0 mm
07-24
29.6° 19.7°
7.69 mm
07-25
34.7° 20.4°
5.69 mm
07-26
33.2° 22.3°
4.5 mm
07-27
24.7° 19.6°
7.37 mm
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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 2026-07-21T21:29 UTC.