Air Quality in Pasadena, United States

Clear
37.4°C · 35.2% humidity
37.4°
Feels 37.4°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
46 stations

Nearby Monitoring Stations

AQI Forecast
28 8am
27
27
25 11am
48
49
51 2pm
32
32
53 5pm
53
53
54 8pm
54
54
66 11pm
66
83
83 2am
83
83
66 5am
66
54
Station readings
28
CAMS model
27
27
27
34
54
54
54
34
34
54
54
54
54
54
54
66
66
83
83
83
83
66
66
54
AD 728×90

Air Quality Index Trend

4h · 2 stn

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

35.2%
Humidity
36.2 km/h
Wind SSE
1015.9 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
25
6.14 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

4h · 2 stations
PM2.56.14 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
6.14
Median
6.11
Average
2.18
Low
15.0
High
PM2.5 µg/m³ · Model: 7.1 · Bias: +1.0
09-05
37.4° 26.1°
09-06
37.7° 27.1°
09-07
37.3° 27.2°
09-08
31.6° 26.1°
2.63 mm
09-09
35.4° 28.6°
0.06 mm
09-10
37.8° 25.5°
0.19 mm
09-11
33.9° 27.2°
4.88 mm
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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 2026-09-05T16:39 UTC.