What is the air quality in South Boston today?

The current Air Quality Index (AQI) in South Boston is 20 (Good). PM2.5 concentration is 4.9 µg/m³.

What is the temperature in South Boston right now?

The current temperature in South Boston 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 South Boston?

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

Air Quality in South Boston, United States

Windy

34.1°C · 43.2% humidity

34.1°

Feels 37.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

4 stations

Nearby Monitoring Stations

AQI Forecast Calibrated

5 8am

20 11am

10 2pm

6 5pm

6 8pm

5 11pm

5 2am

5 5am

Station readings

CAMS model adj -20

Air Quality Index Trend

47h · 1 stn

View full history →

South Boston'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▲

4.9 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for South Boston?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station

PM2.54.9 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX10.9

Extreme

Station readings (4 stations within 25 km)

4.9

Median

3.95

Average

1.0

Low

5.0

High

PM2.5 µg/m³ · Model: 5.8 · Bias: +0.9

What is the 7-day forecast for South Boston?

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: 5.0°C

Where are air quality stations near South Boston?

Boston Roxbury

2.8 km PM2.5: 5.0 µg/m³

Boston Roxbury

2.8 km PM2.5: 5.0 µg/m³

Boston

2.9 km PM2.5: 5.0 µg/m³

East Dedham

12.9 km 71.1°C 67.0% RH PM2.5: 1.0 µg/m³ PM10: 1.6 µg/m³

Lynn Water Treatment Plant

17.0 km PM2.5: 4.8 µg/m³

Lynn Water Treatment Plant

17.0 km PM2.5: 4.8 µg/m³

Lynn Water Treatment Plant

17.0 km PM2.5: 5.0 µg/m³

What cities are near South Boston?

21 Boston 21 Roxbury Crossing 20 Back Bay 20 Fenway/Kenmore 19 Dorchester 20 East Boston 20 Mission Hill 20 Charlestown 17 Ashmont 20 Brookline

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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 2026-09-05T15:10 UTC.