Today | Weather | Monday, September 21, 2026

Weather in Chapel Hill, North Carolina

01:00 PM
Now
Cloudy Weather
90° F
Feels Like 100°
Precipitation 3 %
Wind 5 mph
UV Index (0 - 11+) 6
Humidity 52 %
Today
Sunny with a Chance of Thunderstorms
Day 91°
Night 72°
Precipitation 56 %
Wind 4 mph
UV Index (0 - 11+) 6

Chapel Hill Weather Forecast Updated

Last updated on

Air Quality in Chapel Hill

NOW
44 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.81 µg/m³
PM10 7.11 µg/m³
O3 0.048 ppm
NO2 0.3 ppb
SO2 0.2 ppb
CO 0.13 ppm
NH3 0.74 µg/m³
NO 0.08 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)
PM2.54.81 µg/m³
PM107.11 µg/m³
O393.97 µg/m³
NO20.49 µg/m³
SO20.56 µg/m³
CO147.21 µg/m³
NH30.74 µg/m³
NO0.08 µg/m³