Today | Weather | Tuesday, April 7, 2026

Weather in Danbury, Connecticut

09:38 AM
Now
Cloudy Weather
46° F
Feels Like 45°
Precipitation 1 %
Wind 13 mph
UV Index (0 - 11+) 3
Humidity 50 %
Today
Cloudy Weather
Day 52°
Night 27°
Precipitation 4 %
Wind 14 mph
UV Index (0 - 11+) 6
Tomorrow Morning Frost 6 AM – 6 AM

Danbury Weather Forecast Updated

Last updated on

Air Quality in Danbury

NOW
47 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.45 µg/m³
PM10 2.56 µg/m³
O3 0.051 ppm
NO2 2.8 ppb
SO2 0.8 ppb
CO 0.15 ppm
NH3 0.74 µg/m³
NO 1.16 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)
PM2.51.45 µg/m³
PM102.56 µg/m³
O3100.42 µg/m³
NO25.18 µg/m³
SO21.97 µg/m³
CO169.06 µg/m³
NH30.74 µg/m³
NO1.16 µg/m³