Today | Weather | Wednesday, February 25, 2026

Weather in Chapel Hill, North Carolina

11:21 PM
Now
Cloudy Weather
55° F
Feels Like 52°
Precipitation 14 %
Wind 8 mph
Humidity 66 %
Today
Cloudy Weather
Day 59°
Night 50°
Precipitation 7 %
Wind 12 mph
UV Index (0 - 11+) 4

Chapel Hill Weather Forecast Updated

Air Quality in Chapel Hill

NOW
43 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.2 µg/m³
PM10 6.86 µg/m³
O3 0.047 ppm
NO2 1.4 ppb
SO2 0.4 ppb
CO 0.14 ppm
NH3 1.05 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.54.2 µg/m³
PM106.86 µg/m³
O391.52 µg/m³
NO22.64 µg/m³
SO21.13 µg/m³
CO160.29 µg/m³
NH31.05 µg/m³
NO0 µg/m³