Today | Weather | Monday, September 21, 2026

Weather in Concord, New Hampshire

02:52 PM
Now
Cloudy Weather
68° F
Feels Like 70°
Precipitation 0 %
Wind 9 mph
UV Index (0 - 11+) 3
Humidity 46 %
Today
Cloudy Weather
Day 70°
Night 46°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 5

Concord Weather Forecast Updated

27 minutes ago
Last updated on

Air Quality in Concord

NOW
41 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.01 µg/m³
PM10 3.33 µg/m³
O3 0.044 ppm
NO2 0.8 ppb
SO2 0.2 ppb
CO 0.16 ppm
NH3 0.17 µg/m³
NO 0.24 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)
PM2.53.01 µg/m³
PM103.33 µg/m³
O387.13 µg/m³
NO21.47 µg/m³
SO20.58 µg/m³
CO185.38 µg/m³
NH30.17 µg/m³
NO0.24 µg/m³