Air Quality in Watertown, United States

Drizzle
9.6°C · 93.7% humidity
9.6°
Feels 5.2°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

AQI Forecast
25 7pm
25
25
30 10pm
29
28
27 1am
25
25
25 4am
24
24
25 7am
25
25
25 10am
25
25
25 1pm
25
25
25 4pm
25
27
AD 728×90

Air Quality Index Trend

38h · 1 stn

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

93.7%
Humidity
46.5 km/h
Wind SW
998.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
30
7.3 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

38h · 1 station
PM2.57.3 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
06-09
24.3° 9.6°
2.44 mm
06-10
16.0° 10.7°
2.19 mm
06-11
18.9° 7.2°
06-12
20.6° 16.1°
0.13 mm
06-13
23.9° 16.8°
10.63 mm
06-14
23.1° 10.9°
0.94 mm
06-15
27.4° 18.7°
7.69 mm
Get AQI alerts for Watertown

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T02:54 UTC.