What is the air quality in Darien today?

The current Air Quality Index (AQI) in Darien is 25 (Good). PM2.5 concentration is 6.0 µg/m³.

What is the temperature in Darien right now?

The current temperature in Darien is 18.9°C (feels like 18.9°C). Humidity is 55.4% and wind speed is 33.2 km/h.

Is it safe to go outside in Darien?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Darien, United States

Partly Cloudy

18.9°C · 55.4% humidity

18.9°

Feels 18.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

24 5pm

25 8pm

25 11pm

24 2am

24 5am

24 8am

24 11am

24 2pm

Air Quality Index Trend

48h · 2 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. Current PM2.5 concentration in Darien is 1.2× the WHO annual guideline of 5 µg/m³.

55.4%

Humidity

33.2 km/h

Wind SW

1019.0 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.0 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Darien?

Temperature & Precipitation

PM2.5 Trend

48h · 2 stations

PM2.56.0 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (1 station within 25 km)

6.0

Median

6.0

Average

6.0

Low

6.0

High

PM2.5 µg/m³ · Model: 5.9 · Bias: -0.1

What is the 7-day forecast for Darien?

05-29

18.9° 11.8°

1.0 mm

05-30

21.2° 11.6°

3.75 mm

05-31

25.4° 11.7°

06-01

18.9° 14.0°

0.62 mm

06-02

19.8° 15.8°

06-03

19.7° 17.1°

0.44 mm

06-04

19.8° 17.5°

0.81 mm

Both models agree Avg diff: 3.5°C

Where are air quality stations near Darien?

White Plains, New York, USA

24.9 km PM2.5: 3.6 µg/m³

What cities are near Darien?

19 Stamford 20 East Norwalk 20 Norwalk 25 New Canaan 25 North Stamford 19 Westport 20 Wilton 19 Port Chester 18 Rye 18 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 2026-05-29T00:18 UTC.