Air Quality in Norwalk, United States
Windy
22.3°C · 48.3% humidity
22.3°
Feels 22.3°
39
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Norwalk's air quality — share it
AQI Forecast
24
11pm
24
24
39
2am
35
32
31
5am
29
28
27
8am
25
25
25
11am
26
25
25
2pm
25
25
25
5pm
25
25
24
8pm
24
24
Norwalk's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
48.3%
Humidity
61.8 km/h
Wind N
1016.4 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
9.35 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Norwalk?
Temperature & Precipitation
PM2.59.35 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
What is the 7-day forecast for Norwalk?
08-03
24.7° 18.9°
0.62 mm
08-04
32.6° 16.9°
1.44 mm
08-05
31.9° 16.1°
2.44 mm
08-06
28.6° 18.0°
9.62 mm
08-07
27.6° 16.8°
0.31 mm
08-08
30.8° 18.5°
5.5 mm
08-09
32.0° 22.0°
Both models agree
Avg diff: 3.2°C
What cities are near Norwalk?
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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 2026-08-08T06:20 UTC.