What is the air quality in Weymouth today?

The current Air Quality Index (AQI) in Weymouth is 18 (Good). PM2.5 concentration is 4.25 µg/m³.

What is the temperature in Weymouth right now?

The current temperature in Weymouth is 11.4°C (feels like 11.4°C). Humidity is 76.2% and wind speed is 30.6 km/h.

Is it safe to go outside in Weymouth?

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

Air Quality in Weymouth, United States

Cloudy

11.4°C · 76.2% humidity

11.4°

Feels 11.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

25 7am

18 10am

23 1pm

24 4pm

25 7pm

25 10pm

24 1am

24 4am

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.

76.2%

Humidity

30.6 km/h

Wind NNW

1022.0 hPa

Pressure

9.4

UV Very High

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.25 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Weymouth?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station

PM2.54.25 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX9.4

Very High

Station readings (1 station within 25 km)

4.25

Median

4.25

Average

4.25

Low

4.25

High

PM2.5 µg/m³ · Model: 5.8 · Bias: +1.5

What is the 7-day forecast for Weymouth?

05-29

19.2° 11.4°

0.25 mm

05-30

21.1° 10.1°

8.37 mm

05-31

22.8° 11.0°

0.56 mm

06-01

19.6° 9.7°

06-02

20.6° 12.6°

0.19 mm

06-03

23.3° 14.2°

06-04

18.9° 17.1°

0.31 mm

Both models agree Avg diff: 4.1°C

Where are air quality stations near Weymouth?

Milton Blue Hill Observatory

14.4 km PM2.5: 3.4 µg/m³

Boston Roxbury

16.8 km PM2.5: 3.8 µg/m³

Nubian Square - DEP Station

16.9 km PM2.5: 4.2 µg/m³

Boston

18.2 km PM2.5: 4.1 µg/m³

Boston

18.2 km PM2.5: 4.6 µg/m³

Brockton

18.3 km PM2.5: 6.0 µg/m³

What cities are near Weymouth?

18 Braintree 18 Quincy 24 Rockland 18 Randolph 18 Milton 18 Ashmont 24 Abington 18 Mattapan 18 Dorchester 18 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 2026-05-29T14:38 UTC.