What is the air quality in Colchester today?

The current Air Quality Index (AQI) in Colchester is 25 (Good). PM2.5 concentration is 6.1 µg/m³.

What is the temperature in Colchester right now?

The current temperature in Colchester is 16.0°C (feels like 16.0°C). Humidity is 71.3% and wind speed is 110.8 km/h.

Is it safe to go outside in Colchester?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 2.9 (Moderate).

Air Quality in Colchester, United States

Rain

16.0°C · 71.3% humidity

16.0°

Feels 16.0°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

24 2pm

25 5pm

25 8pm

24 11pm

24 2am

24 5am

25 8am

24 11am

View AQI history for Colchester →

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.

71.3%

Humidity

110.8 km/h

Wind NNW

1012.4 hPa

Pressure

2.9

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.1 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Colchester?

Temperature & Precipitation

PM2.56.1 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX2.9

Moderate

What is the 7-day forecast for Colchester?

05-29

14.4° 9.6°

0.88 mm

05-30

16.0° 9.1°

17.62 mm

05-31

17.6° 8.2°

1.94 mm

06-01

20.3° 15.3°

06-02

16.6° 11.3°

4.19 mm

06-03

19.3° 14.0°

0.06 mm

06-04

20.3° 12.8°

3.81 mm

Both models agree Avg diff: 3.3°C

Where are air quality stations near Colchester?

Underhill, Vermont, USA

22.2 km PM2.5: 10.3 µg/m³

What cities are near Colchester?

12 South Burlington 32 Plattsburgh 11 Saint-Jean-sur-Richelieu 26 Saint-Constant 24 Candiac 26 Granby 22 La Prairie 26 Sainte-Catherine 19 Chambly 20 Brossard

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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 2026-05-29T21:27 UTC.