Today | Weather | Monday, October 12, 2026

Weather in Danbury, Connecticut

09:07 PM
Now
Cloudy Night
57° F
Feels Like 57°
Precipitation 0 %
Wind 4 mph
Humidity 95 %
Today
Cloudy Night
Day 68°
Night 50°
Precipitation 18 %
Wind 2 mph

Danbury Weather Forecast Updated

51 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 12, 2025)
Rainy Weather

Day

59°

Night

54°

Wind

13 mph

Precipitation

99 %

Air Quality in Danbury

NOW
27 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.55 µg/m³
PM10 5.75 µg/m³
O3 0.029 ppm
NO2 10 ppb
SO2 0.8 ppb
CO 0.18 ppm
NH3 0.55 µg/m³
NO 0 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 – 3.55 µg/m³
PM10 – 5.75 µg/m³
O3 – 57.4 µg/m³
NO2 – 18.79 µg/m³
SO2 – 2.15 µg/m³
CO – 202.95 µg/m³
NH3 – 0.55 µg/m³
NO – 0 µg/m³