What is the air quality in Weymouth today?

The current Air Quality Index (AQI) in Weymouth is 18 (Good). PM2.5 concentration is 4.17 µg/m³.

What is the temperature in Weymouth right now?

The current temperature in Weymouth is 8.0°C (feels like 4.1°C). Humidity is 54.4% and wind speed is 28.0 km/h.

Is it safe to go outside in Weymouth?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Weymouth, United States

Partly Cloudy

8.0°C · 54.4% humidity

8.0°

Feels 4.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

3 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

47h · 1 stn

View full history →

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

54.4%

Humidity

28.0 km/h

Wind SSE

1029.8 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.17 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Weymouth?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station

PM2.54.17 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (3 stations within 25 km)

4.17

Median

4.15

Average

0.75

Low

6.7

High

PM2.5 µg/m³ · Model: 5.8 · Bias: +1.6

What is the 7-day forecast for Weymouth?

10-20

15.7° 7.7°

11.62 mm

10-21

20.3° 7.5°

10-22

18.0° 9.2°

0.06 mm

10-23

15.3° 7.5°

10-24

12.2° 10.3°

0.06 mm

10-25

20.8° 8.9°

20.56 mm

10-26

10.5° 8.9°

3.56 mm

Both models agree Avg diff: 3.7°C

Where are air quality stations near Weymouth?

Boston Roxbury

16.8 km PM2.5: 5.3 µg/m³

Boston Roxbury

16.8 km PM2.5: 4.3 µg/m³

Boston Roxbury

16.8 km PM2.5: 5.0 µg/m³

East Dedham

18.1 km 15.8°C 50.0% RH PM2.5: 0.8 µg/m³ PM10: 1.3 µg/m³

Brockton

18.3 km PM2.5: 2.2 µg/m³

Brockton

18.3 km PM2.5: 6.7 µg/m³

Brockton

18.3 km PM2.5: 7.0 µg/m³

What cities are near Weymouth?

16 Braintree 15 Quincy 24 Rockland 18 Randolph 12 Milton 16 Ashmont 26 Abington 12 Mattapan 18 Dorchester 20 South Boston

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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 2026-10-20T21:45 UTC.