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
AD 728×90

Air Quality Index Trend

48h · 1 stn

South 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▲
42
10.08 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for South Pasadena?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.510.08 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX6.9
High
AD 300×250
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)
2.1 km PM2.5: 10.2 µg/m³
50
Sierra Vista ES (6767)
2.4 km PM2.5: 12.0 µg/m³
45
Annandale ES (2151)
3.6 km PM2.5: 10.9 µg/m³
50
El Sereno ES (3562)
3.8 km PM2.5: 11.9 µg/m³
45
Sierra Park ES (6753)
4.2 km PM2.5: 10.9 µg/m³
7
RBAC Rose Bowl Aquatics Center
4.2 km PM2.5: 1.7 µg/m³ PM10: 1.9 µg/m³
25
united-states-of-america-san-marino-sierra-madre-boulevard
5.0 km 30.9°C 35.0% RH PM2.5: 6.0 µg/m³ PM10: 7.0 µg/m³
45
Buchanan ES (2603)
5.2 km PM2.5: 10.8 µg/m³
38
Arroyo Seco Museum Science Magnet SPAN (4322)
5.2 km PM2.5: 9.2 µg/m³
43
Eagle Rock ES (3507)
6.2 km PM2.5: 10.3 µg/m³

What cities are near South Pasadena?

42 Alhambra 42 San Gabriel 42 Monterey Park 42 Rosemead 39 Altadena 42 Temple City 44 Atwater Village 40 La Cañada Flintridge 43 East Los Angeles 42 Boyle Heights
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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.