Air Quality in Darien, United States

Clear
25.6°C · 36.5% humidity
25.6°
Feels 25.6°
54
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast

Nearby Monitoring Stations

AQI Forecast
54 9pm
54
54
54 12am
54
54
34 3am
34
54
54 6am
34
34
27 9am
27
27
27 12pm
34
34
34 3pm
54
54
54 6pm
34
34
AD 728×90

Air Quality Index Trend

46h · 18 stn

Darien's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

36.5%
Humidity
21.9 km/h
Wind NW
1010.8 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
54
13.7 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Darien?

Temperature & Precipitation

PM2.5 Trend

46h · 18 stations
PM2.513.7 µg/m³ ✓ WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX1.4
Low
AD 300×250

What is the 7-day forecast for Darien?

08-03
26.5° 21.0°
11.81 mm
08-04
33.6° 23.0°
08-05
29.5° 21.8°
08-06
24.8° 21.8°
08-07
28.5° 22.4°
5.25 mm
08-08
29.0° 22.5°
0.5 mm
08-09
33.8° 23.9°
1.06 mm
Both models agree Avg diff: 2.4°C

Where are air quality stations near Darien?

14
Bridgeport, Connecticut, USA
25.2 km PM2.5: 3.4 µg/m³

What cities are near Darien?

52 Stamford 37 East Norwalk 37 Norwalk 63 New Canaan 54 North Stamford 37 Westport 37 Wilton 52 Port Chester 52 Rye 52 Harrison
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T04:42 UTC.