What is the air quality in Chestnut Hill today?

The current Air Quality Index (AQI) in Chestnut Hill is 10 (Good). PM2.5 concentration is 2.28 µg/m³.

What is the temperature in Chestnut Hill right now?

The current temperature in Chestnut Hill is 34.1°C (feels like 37.7°C). Humidity is 43.2% and wind speed is 61.4 km/h.

Is it safe to go outside in Chestnut Hill?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 10.9 (Extreme).

Air Quality in Chestnut Hill, United States

Windy

34.1°C · 43.2% humidity

34.1°

Feels 37.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated

4 11am

10 2pm

6 5pm

6 8pm

5 11pm

5 2am

5 5am

5 8am

Station readings

CAMS model adj -20

Air Quality Index Trend

47h · 1 stn

View full history →

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

43.2%

Humidity

61.4 km/h

Wind WSW

1013.0 hPa

Pressure

10.9

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

2.28 µg/m³

PM10▲

13.7 µg/m³

050100150200300500

What is the weather forecast for Chestnut Hill?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station

PM2.52.28 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX10.9

Extreme

Station readings (3 stations within 25 km)

2.28

Median

2.8

Average

0.9

Low

4.1

High

PM2.5 µg/m³ · Model: 5.8 · Bias: +3.5

What is the 7-day forecast for Chestnut Hill?

09-05

34.1° 13.3°

10.0 mm

09-06

21.2° 17.9°

1.19 mm

09-07

21.1° 14.1°

09-08

19.6° 16.4°

6.75 mm

09-09

28.4° 12.8°

0.62 mm

09-10

24.4° 13.4°

3.25 mm

09-11

30.7° 12.8°

Both models agree Avg diff: 4.9°C

Where are air quality stations near Chestnut Hill?

Boston Roxbury

6.9 km PM2.5: 5.3 µg/m³

East Dedham

9.1 km 68.9°C 76.0% RH PM2.5: 1.3 µg/m³ PM10: 2.2 µg/m³

Boston

9.3 km PM2.5: 5.0 µg/m³

Boston

9.3 km PM2.5: 3.4 µg/m³

Lynn Water Treatment Plant

22.6 km PM2.5: 4.1 µg/m³

What cities are near Chestnut Hill?

11 Brighton 12 Brookline 10 Jamaica Plain 13 Allston 11 Watertown 12 Mission Hill 7 Roslindale 13 Fenway/Kenmore 5 West Roxbury 13 Roxbury Crossing

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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 2026-09-05T18:56 UTC.