Air Quality in Norwalk, United States

Windy
10.0°C · 34.8% humidity
10.0°
Feels 5.0°
65
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Calibrated model

Nearby Monitoring Stations

AQI Forecast Calibrated
19 5pm
19
19
2 8pm
19
19
19 11pm
19
19
32 2am
32
32
32 5am
32
32
32 8am
57
57
57 11am
57
57
57 2pm
57
57
Station readings
2
CAMS model adj -18
37
37
37
37
37
37
37
37
37
50
50
50
50
50
50
50
75
75
75
75
75
75
75
75
AD 728×90

PM2.5 Trend (24h)

22h · 1 station
34.8%
Humidity
62.0 km/h
Wind S
1035.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Norwalk?

Temperature & Precipitation

PM2.518.58 µg/m³ ×1.2 WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250

What is the 7-day forecast for Norwalk?

04-09
10.0° -0.3°
04-10
17.0° 2.3°
04-11
21.6° 6.9°
04-12
17.2° 7.2°
04-13
12.2° 7.6°
1.25 mm
04-14
27.1° 13.7°
0.38 mm
04-15
23.7° 18.8°
0.75 mm
Both models agree Avg diff: 2.9°C

What cities are near Norwalk?

52 East Norwalk 51 Westport 66 Darien 65 New Canaan 64 Wilton 54 North Stamford 67 Stamford 45 Bridgeport 42 Trumbull 42 Stratford

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T20:28 UTC.