What is the air quality in Westford today?

The current Air Quality Index (AQI) in Westford is 43 (Good). PM2.5 concentration is 10.38 µg/m³.

What is the temperature in Westford right now?

The current temperature in Westford is 20.4°C (feels like 20.4°C). Humidity is 71.6% and wind speed is 56.9 km/h.

Is it safe to go outside in Westford?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 12.9 (Extreme).

Air Quality in Westford, United States

Windy

20.4°C · 71.6% humidity

20.4°

Feels 20.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

34 1pm

43 4pm

37 7pm

26 10pm

24 1am

24 4am

24 7am

24 10am

Air Quality Index Trend

48h · 3 stn

View full history →

Westford's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

71.6%

Humidity

56.9 km/h

Wind NE

1014.9 hPa

Pressure

12.9

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

10.38 µg/m³

PM10

34.3 µg/m³

050100150200300500

What is the weather forecast for Westford?

Temperature & Precipitation

PM2.5 Trend

48h · 3 stations

PM2.510.38 µg/m³ ✓ WHO

Good

PM1034.3 µg/m³

Good

UV INDEX12.9

Extreme

What is the 7-day forecast for Westford?

07-21

25.4° 20.4°

3.44 mm

07-22

22.4° 14.0°

16.69 mm

07-23

26.7° 16.4°

1.75 mm

07-24

28.2° 14.9°

2.69 mm

07-25

32.8° 20.2°

4.81 mm

07-26

22.4° 16.3°

3.13 mm

07-27

29.4° 15.0°

1.25 mm

Both models agree Avg diff: 3.4°C

Where are air quality stations near Westford?

Park/Lawrence

27.0 km PM2.5: 9.2 µg/m³

What cities are near Westford?

38 Chelmsford 50 Acton 38 Lowell 38 Billerica 39 Dracut 38 Tewksbury 43 Nashua 64 Sudbury 54 Woburn 38 Methuen

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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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 2026-07-21T20:02 UTC.