Today | Weather | Wednesday, May 6, 2026

Weather in Danbury, Connecticut

10:48 AM
Now
Cloudy Weather
64° F
Feels Like 68°
Precipitation 49 %
Wind 13 mph
UV Index (0 - 11+) 6
Humidity 69 %
Today
Partly Sunny with Showers
Day 64°
Night 46°
Precipitation 84 %
Wind 14 mph
UV Index (0 - 11+) 2

Danbury Weather Forecast Updated

24 minutes ago
Last updated on

Air Quality in Danbury

NOW
62 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.13 µg/m³
PM10 8 µg/m³
O3 0.058 ppm
NO2 1.4 ppb
SO2 0.4 ppb
CO 0.11 ppm
NH3 0.89 µg/m³
NO 0.35 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.54.13 µg/m³
PM108 µg/m³
O3113.68 µg/m³
NO22.64 µg/m³
SO21.06 µg/m³
CO131.45 µg/m³
NH30.89 µg/m³
NO0.35 µg/m³