Air Quality in Colchester, United States
Windy
18.7°C · 48.2% humidity
18.7°
Feels 18.7°
54
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Calibrated model
Nearby Monitoring Stations
Colchester's air quality — share it
AQI Forecast
25
6pm
25
25
54
9pm
46
48
44
12am
41
39
38
3am
57
36
35
6am
28
28
25
9am
25
25
24
12pm
24
24
24
3pm
24
24
Colchester's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
48.2%
Humidity
50.4 km/h
Wind NNE
1012.0 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
13.4 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Colchester?
Temperature & Precipitation
PM2.513.4 µg/m³
✓ WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX2.2
Moderate
What is the 7-day forecast for Colchester?
08-03
23.4° 18.1°
0.56 mm
08-04
27.1° 17.5°
1.06 mm
08-05
27.1° 17.0°
6.31 mm
08-06
21.0° 20.2°
2.5 mm
08-07
27.6° 16.8°
9.75 mm
08-08
21.5° 17.6°
0.13 mm
08-09
29.1° 19.4°
3.38 mm
Both models agree
Avg diff: 3.9°C
What cities are near Colchester?
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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 2026-08-08T01:46 UTC.