Air Quality in Sudbury, United States
Rain
16.4°C · 97.3% humidity
16.4°
Feels 16.4°
61
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station
Nearby Monitoring Stations
Sudbury's air quality — share it
AQI Forecast
Calibrated
63
3pm
63
63
61
6pm
63
56
56
9pm
54
54
53
12am
53
53
53
3am
53
53
53
6am
53
53
53
9am
53
53
53
12pm
54
54
Station readings
65
71
56
58
CAMS model
adj +29
34
34
34
34
34
27
27
25
25
24
24
24
24
24
24
24
24
24
24
24
24
24
25
25
Air Quality Index Trend
48h · 1 stnSudbury'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 Sudbury is 1.1× the WHO 24-hour guideline of 15 µg/m³.
97.3%
Humidity
72.9 km/h
Wind NNE
1013.1 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
17.04 µg/m³
PM10
34.3 µg/m³
050100150200300500
What is the weather forecast for Sudbury?
Temperature & Precipitation
PM2.5 Trend
48h · 1 stationPM2.517.04 µg/m³
×1.1 WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX2.2
Moderate
Station readings (1 station within 25 km)
17.04
Median
17.04
Average
17.04
Low
17.04
High
PM2.5 µg/m³ · Model: 17.65 · Bias: +0.6
What is the 7-day forecast for Sudbury?
07-21
26.4° 18.7°
3.81 mm
07-22
22.0° 14.0°
11.0 mm
07-23
27.6° 15.9°
1.25 mm
07-24
25.9° 14.8°
2.19 mm
07-25
34.8° 20.3°
2.44 mm
07-26
22.4° 16.8°
2.0 mm
07-27
29.2° 14.6°
3.06 mm
Both models agree
Avg diff: 3.2°C
Where are air quality stations near Sudbury?
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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 2026-07-21T22:39 UTC.