Air Quality in Colchester, United States
Windy
14.3°C · 75.3% humidity
14.3°
Feels 14.3°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
AQI Forecast
24
5am
24
24
25
8am
25
25
27
11am
27
27
25
2pm
25
25
25
5pm
25
27
27
8pm
27
34
34
11pm
54
54
54
2am
34
27
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.
75.3%
Humidity
57.7 km/h
Wind S
1014.2 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.9 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Colchester?
Temperature & Precipitation
PM2.55.9 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX4.4
Moderate
What is the 7-day forecast for Colchester?
06-09
21.6° 11.6°
1.31 mm
06-10
17.6° 12.7°
3.44 mm
06-11
20.8° 10.1°
0.31 mm
06-12
19.1° 14.6°
9.31 mm
06-13
24.8° 16.8°
24.25 mm
06-14
23.9° 12.8°
9.13 mm
06-15
21.9° 16.3°
8.19 mm
Both models agree
Avg diff: 5.8°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 2026-06-09T12:10 UTC.