What is the air quality in Back Bay today?

The current Air Quality Index (AQI) in Back Bay is 20 (Good). PM2.5 concentration is 4.68 µg/m³.

What is the temperature in Back Bay right now?

The current temperature in Back Bay is 18.8°C (feels like 18.8°C). Humidity is 38.6% and wind speed is 46.0 km/h.

Is it safe to go outside in Back Bay?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 9.4 (Very High).

Air Quality in Back Bay, United States

Windy

18.8°C · 38.6% humidity

18.8°

Feels 18.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

6 stations

Nearby Monitoring Stations

AQI Forecast

24 12pm

20 3pm

23 6pm

33 9pm

27 12am

24 3am

24 6am

25 9am

Air Quality Index Trend

46h · 9 stn

View full history →

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

38.6%

Humidity

46.0 km/h

Wind ESE

1021.0 hPa

Pressure

9.4

UV Very High

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.68 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Back Bay?

Temperature & Precipitation

PM2.5 Trend

46h · 9 stations

PM2.54.68 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX9.4

Very High

Station readings (6 stations within 25 km)

4.68

Median

6.03

Average

3.8

Low

9.4

High

PM2.5 µg/m³ · Model: 6.0 · Bias: +1.3

What is the 7-day forecast for Back Bay?

05-29

19.2° 11.2°

0.13 mm

05-30

24.5° 9.2°

8.56 mm

05-31

25.5° 10.0°

0.5 mm

06-01

22.7° 8.1°

06-02

20.9° 12.2°

0.44 mm

06-03

27.3° 14.7°

06-04

22.8° 17.5°

0.13 mm

Both models agree Avg diff: 5.3°C

Where are air quality stations near Back Bay?

Nubian Square - DEP Station

2.3 km PM2.5: 5.0 µg/m³

Boston Roxbury

2.3 km PM2.5: 10.6 µg/m³

Boston

2.4 km PM2.5: 10.6 µg/m³

Boston

2.4 km PM2.5: 10.8 µg/m³

Milton Blue Hill Observatory

15.6 km PM2.5: 8.4 µg/m³

What cities are near Back Bay?

20 Fenway/Kenmore 21 Roxbury Crossing 16 Boston 21 Mission Hill 20 Cambridge 20 Allston 21 Brookline 20 South Boston 18 Charlestown 20 Somerville

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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 2026-05-29T19:14 UTC.