What is the air quality in Colchester today?

The current Air Quality Index (AQI) in Colchester is 25 (Good). PM2.5 concentration is 5.9 µg/m³.

What is the temperature in Colchester right now?

The current temperature in Colchester is 14.3°C (feels like 14.3°C). Humidity is 75.3% and wind speed is 57.7 km/h.

Is it safe to go outside in Colchester?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 4.4 (Moderate).

Air Quality in Colchester, United States

Windy

14.3°C · 75.3% humidity

14.3°

Feels 14.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

24 5am

25 8am

27 11am

25 2pm

25 5pm

27 8pm

34 11pm

54 2am

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.

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

Where are air quality stations near Colchester?

Underhill, Vermont, USA

22.2 km PM2.5: 12.1 µg/m³

What cities are near Colchester?

16 South Burlington 23 Plattsburgh 23 Saint-Jean-sur-Richelieu 28 Saint-Constant 28 Candiac 25 Granby 28 La Prairie 30 Sainte-Catherine 25 Chambly 29 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 2026-06-09T12:10 UTC.