What is the air quality in Winthrop today?

The current Air Quality Index (AQI) in Winthrop is 24 (Good). PM2.5 concentration is 5.76 µg/m³.

What is the temperature in Winthrop right now?

The current temperature in Winthrop is 8.2°C (feels like 4.5°C). Humidity is 53.9% and wind speed is 26.8 km/h.

Is it safe to go outside in Winthrop?

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

Air Quality in Winthrop, United States

Partly Cloudy

8.2°C · 53.9% humidity

8.2°

Feels 4.5°

Good

Air quality is satisfactory. Enjoy outdoor activities.

4 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

47h · 1 stn

View full history →

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

53.9%

Humidity

26.8 km/h

Wind SSE

1029.7 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.76 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Winthrop?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station

PM2.55.76 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (4 stations within 25 km)

5.76

Median

5.04

Average

1.47

Low

7.0

High

PM2.5 µg/m³ · Model: 5.8 · Bias: +0.0

What is the 7-day forecast for Winthrop?

10-21

20.4° 7.1°

10-22

16.5° 7.9°

0.44 mm

10-23

15.1° 6.4°

10-24

13.2° 10.1°

10-25

21.5° 8.6°

25.69 mm

10-26

10.7° 7.5°

4.0 mm

10-27

12.0° 6.8°

2.87 mm

Both models agree Avg diff: 4.0°C

Where are air quality stations near Winthrop?

Boston

6.6 km PM2.5: 5.5 µg/m³

Boston Roxbury

9.6 km PM2.5: 4.3 µg/m³

Boston Roxbury

9.6 km PM2.5: 7.0 µg/m³

Boston Roxbury

9.6 km PM2.5: 4.8 µg/m³

Lynn Water Treatment Plant

11.1 km PM2.5: 3.1 µg/m³

Lynn Water Treatment Plant

11.1 km PM2.5: 6.2 µg/m³

Lynn Water Treatment Plant

11.1 km PM2.5: 4.3 µg/m³

Lynn Water Treatment Plant

11.1 km PM2.5: 2.9 µg/m³

East Dedham

20.0 km 10.8°C 77.0% RH PM2.5: 2.0 µg/m³ PM10: 3.3 µg/m³

What cities are near Winthrop?

24 Orient Heights 24 Revere 24 Chelsea 24 East Boston 23 Charlestown 23 Boston 24 Everett 26 South Boston 24 Malden 26 Back Bay

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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 2026-10-21T00:31 UTC.