Air Quality in Norwalk, United States
Drizzle
13.2°C · 69.0% humidity
13.2°
Feels 13.2°
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Norwalk's air quality — share it
AQI Forecast
25
7pm
25
27
21
10pm
25
27
29
1am
31
32
32
4am
33
33
26
7am
27
34
34
10am
34
54
54
1pm
54
54
54
4pm
54
54
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.
69.0%
Humidity
36.4 km/h
Wind W
1000.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.0 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Norwalk?
Temperature & Precipitation
PM2.5 Trend
48h · 1 stationPM2.55.0 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
5.0
Median
5.0
Average
5.0
Low
5.0
High
PM2.5 µg/m³ · Model: 7.1 · Bias: +2.1
What is the 7-day forecast for Norwalk?
06-09
33.6° 11.4°
0.19 mm
06-10
20.0° 15.8°
5.19 mm
06-11
24.6° 9.2°
06-12
20.7° 14.6°
5.75 mm
06-13
28.1° 16.1°
0.5 mm
06-14
24.0° 15.1°
18.56 mm
06-15
24.4° 12.9°
Both models agree
Avg diff: 5.5°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 2026-06-09T02:10 UTC.