Air Quality in South Pasadena, United States
Windy
30.0°C · 23.1% humidity
30.0°
Feels 30.0°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
95 stations
Nearby Monitoring Stations
AQI Forecast
Calibrated
45
2pm
45
45
42
5pm
45
45
45
8pm
45
45
45
11pm
45
45
45
2am
45
45
45
5am
45
45
45
8am
45
45
45
11am
45
45
Station readings
42
46
50
25
CAMS model
adj -9
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
Air Quality Index Trend
48h · 1 stnSouth 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.
23.1%
Humidity
44.5 km/h
Wind SSW
1009.0 hPa
Pressure
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
10.08 µg/m³
PM10
34.3 µg/m³
050100150200300500
What is the weather forecast for South Pasadena?
Temperature & Precipitation
PM2.5 Trend
48h · 1 stationPM2.510.08 µg/m³
✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX6.9
High
Station readings (95 stations within 25 km)
10.08
Median
9.75
Average
2.22
Low
14.91
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +3.4
What is the 7-day forecast for South Pasadena?
06-09
30.0° 16.3°
06-10
29.6° 16.5°
06-11
27.9° 16.9°
06-12
30.0° 18.0°
0.06 mm
06-13
34.3° 19.4°
06-14
28.5° 22.0°
06-15
25.4° 12.9°
Both models agree
Avg diff: 3.2°C
Where are air quality stations near South Pasadena?
42
San Pascual ES (6493)
50
Sierra Vista ES (6767)
45
Annandale ES (2151)
50
El Sereno ES (3562)
45
Sierra Park ES (6753)
7
RBAC Rose Bowl Aquatics Center
25
united-states-of-america-san-marino-sierra-madre-boulevard
45
Buchanan ES (2603)
38
Arroyo Seco Museum Science Magnet SPAN (4322)
43
Eagle Rock ES (3507)
What cities are near South Pasadena?
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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 2026-06-09T00:59 UTC.