Air Quality in Ottawa, United States
Cloudy
29.0°C · 74.8% humidity
29.0°
Feels 34.9°
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Ottawa's air quality — share it
AQI Forecast
27
1pm
27
27
21
4pm
23
31
32
7pm
25
26
26
10pm
26
27
27
1am
27
34
34
4am
34
34
34
7am
27
25
25
10am
25
25
Ottawa's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
74.8%
Humidity
17.4 km/h
Wind ESE
1005.4 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.0 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Ottawa?
Temperature & Precipitation
PM2.55.0 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX5.9
High
What is the 7-day forecast for Ottawa?
09-05
19.1° 16.8°
09-06
29.0° 13.5°
1.56 mm
09-07
23.3° 15.8°
1.37 mm
09-08
21.3° 13.7°
41.81 mm
09-09
27.4° 14.0°
2.87 mm
09-10
25.9° 15.0°
0.63 mm
09-11
34.8° 14.1°
0.38 mm
Both models agree
Avg diff: 7.0°C
What cities are near Ottawa?
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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 2026-09-05T21:19 UTC.