Air Quality in Chelsea, United States

Windy
13.3°C · 31.0% humidity
13.3°
Feels 13.3°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
23 3pm
22
22
3 6pm
3
3
3 9pm
3
3
3 12am
15
15
15 3am
15
15
15 6am
15
15
15 9am
15
28
28 12pm
53
28
Station readings
23
22
22
CAMS model adj -22
37
37
25
25
25
25
25
25
25
25
37
37
37
37
37
37
37
37
37
37
50
50
75
50
AD 728×90

PM2.5 Trend (24h)

23h · 2 stations
31.0%
Humidity
74.0 km/h
Wind SSW
1033.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Chelsea?

Temperature & Precipitation

PM2.55.32 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (1 station within 25 km)
5.32
Median
5.32
Average
5.32
Low
5.32
High
PM2.5 µg/m³ · Model: 23.4 · Bias: +18.1

What is the 7-day forecast for Chelsea?

04-09
13.3° -0.7°
04-10
19.2° 3.4°
04-11
22.8° 7.9°
04-12
17.3° 7.3°
04-13
13.1° 8.5°
1.75 mm
04-14
26.5° 13.6°
0.25 mm
04-15
25.3° 19.1°
0.19 mm
Both models agree Avg diff: 3.1°C

Where are air quality stations near Chelsea?

26
Boston
4.3 km
39
Boston
4.3 km
30
Boston Von Hillern
7.6 km
37
Boston Von Hillern
7.6 km
35
Boston Von Hillern
7.6 km
33
Magazine Beach Park
7.9 km PM2.5: 7.9 µg/m³ PM10: 9.2 µg/m³
22
Nubian Square - DEP Station
8.0 km PM2.5: 5.3 µg/m³
39
Boston Roxbury
8.0 km
37
Boston Roxbury
8.0 km
30
Lynn Water Treatment Plant
10.5 km

What cities are near Chelsea?

22 East Boston 22 Orient Heights 22 Everett 22 Revere 22 Charlestown 22 Boston 22 Winthrop 22 Malden 22 Somerville 22 Cambridge

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T18:44 UTC.