What is the air quality in Darien today?

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

What is the temperature in Darien right now?

The current temperature in Darien is 11.6°C (feels like 11.6°C). Humidity is 54.9% and wind speed is 68.8 km/h.

Is it safe to go outside in Darien?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Darien, United States

Windy

11.6°C · 54.9% humidity

11.6°

Feels 11.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 17 stn

View full history →

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.

54.9%

Humidity

68.8 km/h

Wind NW

1017.6 hPa

Pressure

0.0

UV Low

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 Darien?

Temperature & Precipitation

PM2.5 Trend

45h · 17 stations

PM2.55.5 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (1 station within 25 km)

5.5

Median

5.5

Average

5.5

Low

5.5

High

PM2.5 µg/m³ · Model: 6.0 · Bias: +0.5

Both models agree Avg diff: 3.7°C

Where are air quality stations near Darien?

White Plains, New York, USA

24.9 km PM2.5: 5.5 µg/m³

What cities are near Darien?

23 Stamford 18 East Norwalk 18 Norwalk 23 New Canaan 23 North Stamford 18 Westport 18 Wilton 21 Port Chester 21 Rye 19 Harrison

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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 2026-10-21T23:02 UTC.