Air Quality in Westerly, United States
Drizzle
15.2°C · 68.1% humidity
15.2°
Feels 15.2°
45
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Westerly's air quality — share it
AQI Forecast
54
5pm
54
54
45
8pm
19
20
22
11pm
23
23
24
2am
24
24
25
5am
25
25
25
8am
24
24
24
11am
24
24
24
2pm
24
25
Air Quality Index Trend
45h · 2 stnWesterly's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Westerly is 2.1× the WHO annual guideline of 5 µg/m³.
68.1%
Humidity
21.7 km/h
Wind NW
1019.1 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
10.75 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Westerly?
Temperature & Precipitation
PM2.5 Trend
45h · 2 stationsPM2.510.75 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for Westerly?
05-29
17.1° 11.4°
0.94 mm
05-30
18.4° 10.3°
2.5 mm
05-31
26.6° 11.7°
0.5 mm
06-01
22.6° 6.3°
0.06 mm
06-02
20.0° 9.8°
0.5 mm
06-03
24.5° 12.1°
06-04
21.9° 16.8°
1.5 mm
Both models agree
Avg diff: 3.5°C
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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 2026-05-29T00:11 UTC.