Air Quality in Pasadena, United States
Partly Cloudy
27.4°C · 52.2% humidity
27.4°
Feels 29.7°
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
AQI Forecast
25
4pm
27
27
27
7pm
27
27
27
10pm
27
27
27
1am
27
27
27
4am
25
25
25
7am
25
25
25
10am
25
25
25
1pm
25
25
Air Quality Index Trend
47h · 4 stnPasadena's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
52.2%
Humidity
34.1 km/h
Wind ENE
1013.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.5 µg/m³
PM10
27.45 µg/m³
050100150200300500
What is the weather forecast for Pasadena?
Temperature & Precipitation
PM2.5 Trend
47h · 4 stationsPM2.56.5 µg/m³
✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX0.7
Low
Station readings (2 stations within 25 km)
6.5
Median
6.5
Average
5.8
Low
7.2
High
PM2.5 µg/m³ · Model: 12.85 · Bias: +6.3
What is the 7-day forecast for Pasadena?
07-21
29.2° 23.0°
0.5 mm
07-22
28.4° 23.1°
0.75 mm
07-23
30.6° 19.9°
13.13 mm
07-24
28.3° 20.0°
0.38 mm
07-25
31.0° 22.2°
2.5 mm
07-26
28.3° 22.7°
5.56 mm
07-27
26.2° 23.9°
Both models agree
Avg diff: 2.7°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 2026-07-21T23:26 UTC.