Air Quality in Ottawa, United States
Windy
12.9°C · 69.4% humidity
12.9°
Feels 12.9°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Ottawa's air quality — share it
AQI Forecast
34
2pm
34
34
42
5pm
33
31
28
8pm
27
27
26
11pm
26
26
25
2am
25
25
25
5am
25
25
25
8am
25
25
25
11am
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. Current PM2.5 concentration in Ottawa is 2.0× the WHO annual guideline of 5 µg/m³.
69.4%
Humidity
88.6 km/h
Wind NE
1026.8 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
9.98 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Ottawa?
Temperature & Precipitation
PM2.59.98 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX4.4
Moderate
What is the 7-day forecast for Ottawa?
05-28
27.7° 13.1°
26.06 mm
05-29
29.1° 7.1°
05-30
23.6° 12.2°
1.19 mm
05-31
30.5° 14.3°
06-01
30.1° 15.8°
0.13 mm
06-02
22.2° 15.5°
2.38 mm
06-03
29.6° 23.0°
Both models agree
Avg diff: 5.1°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 2026-05-28T22:51 UTC.