Today | Weather | Tuesday, January 13, 2026

Weather in Danbury, Connecticut

05:02 PM
Now
Cloudy Night
43° F
Feels Like 30°
Precipitation 0 %
Wind 15 mph
Humidity 50 %
Today
Cloudy Weather
Day 46°
Night 37°
Precipitation 0 %
Wind 9 mph
UV Index (0 - 11+) 2

Danbury Weather Forecast Updated

56 minutes ago
Last updated on

Air Quality in Danbury

NOW
32 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 7.68 µg/m³
PM10 10.86 µg/m³
O3 0.033 ppm
NO2 7.3 ppb
SO2 1.5 ppb
CO 0.18 ppm
NH3 0.66 µg/m³
NO 0.05 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)
PM2.57.68 µg/m³
PM1010.86 µg/m³
O365.02 µg/m³
NO213.71 µg/m³
SO24.04 µg/m³
CO210.73 µg/m³
NH30.66 µg/m³
NO0.05 µg/m³