Air Quality in Norwalk, United States
Drizzle
17.7°C · 61.2% humidity
17.7°
Feels 17.7°
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Norwalk's air quality — share it
AQI Forecast
24
2pm
24
24
17
5pm
19
20
21
8pm
22
23
24
11pm
23
24
24
2am
24
24
24
5am
24
24
24
8am
24
24
24
11am
24
24
Air Quality Index Trend
48h · 1 stnNorwalk's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
61.2%
Humidity
12.0 km/h
Wind WSW
1018.8 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
3.98 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Norwalk?
Temperature & Precipitation
PM2.5 Trend
48h · 1 stationPM2.53.98 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX4.4
Moderate
What is the 7-day forecast for Norwalk?
05-28
23.3° 16.8°
1.44 mm
05-29
17.7° 11.0°
0.19 mm
05-30
22.6° 10.2°
2.44 mm
05-31
27.5° 8.4°
06-01
23.8° 10.0°
06-02
20.2° 9.9°
06-03
25.7° 14.7°
0.19 mm
Both models agree
Avg diff: 3.7°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 2026-05-28T21:46 UTC.