Air Quality in Stamford, United States
Clear
25.6°C · 36.5% humidity
25.6°
Feels 25.6°
52
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station
Nearby Monitoring Stations
Stamford's air quality — share it
AQI Forecast
Calibrated
40
4pm
40
40
52
7pm
69
66
64
10pm
63
62
62
1am
61
41
41
4am
60
60
40
7am
40
33
33
10am
33
33
40
1pm
40
40
Station readings
49
41
7
CAMS model
adj +6
34
34
34
34
54
54
54
54
54
54
54
34
34
54
54
34
34
27
27
27
27
34
34
34
Air Quality Index Trend
47h · 1 stnStamford'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▲
12.69 µg/m³
PM10
27.45 µg/m³
050100150200300500
What is the weather forecast for Stamford?
Temperature & Precipitation
PM2.5 Trend
47h · 1 stationPM2.512.69 µg/m³
✓ WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX1.4
Low
Station readings (1 station within 25 km)
12.69
Median
12.69
Average
12.69
Low
12.69
High
PM2.5 µg/m³ · Model: 13.7 · Bias: +1.0
What is the 7-day forecast for Stamford?
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
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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 2026-08-07T23:59 UTC.