Today | Weather | Sunday, November 1, 2026

Weather in Danbury, Connecticut

11:33 PM
Today
Cloudy Night
Day 61°
Night 37°
Precipitation 2 %
Wind 2 mph

Danbury Weather Forecast Updated

24 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 1, 2025)
Cloudy Night

Day

57°

Night

36°

Wind

4 mph

Precipitation

1 %

Air Quality in Danbury

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

Pollutant Concentrations:

PM2.5 10.87 µg/m³
PM10 15.34 µg/m³
O3 0.019 ppm
NO2 16.7 ppb
SO2 0.5 ppb
CO 0.28 ppm
NH3 0.37 µg/m³
NO 0.01 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)
PM2.5 – 10.87 µg/m³
PM10 – 15.34 µg/m³
O3 – 36.79 µg/m³
NO2 – 31.48 µg/m³
SO2 – 1.31 µg/m³
CO – 317.81 µg/m³
NH3 – 0.37 µg/m³
NO – 0.01 µg/m³