What is the air quality in Marlborough today?

The current Air Quality Index (AQI) in Marlborough is 30 (Good). PM2.5 concentration is 7.2 µg/m³.

What is the temperature in Marlborough right now?

The current temperature in Marlborough is 23.7°C (feels like 23.7°C). Humidity is 81.8% and wind speed is 49.0 km/h.

Is it safe to go outside in Marlborough?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Marlborough, United States

Drizzle

23.7°C · 81.8% humidity

23.7°

Feels 23.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

24 5pm

30 8pm

29 11pm

25 2am

24 5am

24 8am

24 11am

24 2pm

Air Quality Index Trend

46h · 7 stn

View full history →

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

81.8%

Humidity

49.0 km/h

Wind WSW

1009.9 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

7.2 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Marlborough?

Temperature & Precipitation

PM2.5 Trend

46h · 7 stations

PM2.57.2 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (1 station within 25 km)

7.2

Median

7.2

Average

7.2

Low

7.2

High

PM2.5 µg/m³ · Model: 5.9 · Bias: -1.3

What is the 7-day forecast for Marlborough?

05-30

23.7° 8.2°

8.0 mm

05-31

25.0° 8.7°

0.62 mm

06-01

23.6° 8.1°

06-02

18.3° 11.3°

06-03

26.5° 14.4°

06-04

22.6° 17.4°

0.25 mm

06-05

24.5° 10.5°

0.13 mm

Both models agree Avg diff: 5.2°C

Where are air quality stations near Marlborough?

Worcester Summer St

21.9 km PM2.5: 7.9 µg/m³

What cities are near Marlborough?

27 Framingham Center 27 Ashland 27 Sudbury 28 Framingham 30 Shrewsbury 40 Natick 25 Acton 30 Grafton 40 Wellesley 30 Worcester

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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 2026-05-30T00:39 UTC.