What is the air quality in Danbury today?

The current Air Quality Index (AQI) in Danbury is 23 (Good). PM2.5 concentration is 5.5 µg/m³.

What is the temperature in Danbury right now?

The current temperature in Danbury is 15.9°C (feels like 15.9°C). Humidity is 57.5% and wind speed is 40.4 km/h.

Is it safe to go outside in Danbury?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 4.4 (Moderate).

Air Quality in Danbury, United States

Windy

15.9°C · 57.5% humidity

15.9°

Feels 15.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

24 2pm

23 5pm

24 8pm

25 11pm

24 2am

24 5am

24 8am

24 11am

Air Quality Index Trend

48h · 1 stn

View full history →

Danbury's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Danbury is 1.1× the WHO annual guideline of 5 µg/m³.

57.5%

Humidity

40.4 km/h

Wind N

1018.8 hPa

Pressure

4.4

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.5 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Danbury?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station

PM2.55.5 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX4.4

Moderate

Station readings (2 stations within 25 km)

5.5

Median

5.5

Average

3.8

Low

7.2

High

PM2.5 µg/m³ · Model: 5.9 · Bias: +0.4

What is the 7-day forecast for Danbury?

05-28

22.4° 17.2°

0.38 mm

05-29

16.4° 10.1°

0.06 mm

05-30

23.2° 9.6°

3.88 mm

05-31

26.6° 8.9°

06-01

24.5° 9.5°

06-02

18.9° 9.0°

06-03

26.2° 14.4°

0.13 mm

Both models agree Avg diff: 3.7°C

Where are air quality stations near Danbury?

Mt. Ninham, New York, USA

22.4 km PM2.5: 0.7 µg/m³

What cities are near Danbury?

23 Wilton 23 Southbury 15 Trumbull 25 New Canaan 16 Westport 25 North Stamford 17 Norwalk 15 Shelton 17 Seymour 16 Ansonia

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-28T21:46 UTC.