Air Quality in South Pasadena, United States

Clear
22.1°C · 24.8% humidity
22.1°
Feels 22.1°
36
Good
Air quality is satisfactory. Enjoy outdoor activities.
95 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
28 7pm
28
28
36 10pm
34
32
31 1am
30
30
29 4am
29
29
28 7am
28
28
28 10am
28
28
28 1pm
28
28
28 4pm
28
28
Station readings
21
33
33
33
CAMS model adj -26
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.

24.8%
Humidity
18.9 km/h
Wind NNE
1010.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
36
8.61 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for South Pasadena?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.58.61 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (95 stations within 25 km)
8.61
Median
8.9
Average
0.26
Low
16.4
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +2.2

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: 3.3°C

Where are air quality stations near South Pasadena?

33
San Pascual ES (6493)
2.1 km PM2.5: 8.0 µg/m³
42
Sierra Vista ES (6767)
2.4 km PM2.5: 10.2 µg/m³
36
Annandale ES (2151)
3.6 km PM2.5: 8.6 µg/m³
41
El Sereno ES (3562)
3.8 km PM2.5: 9.9 µg/m³
37
Sierra Park ES (6753)
4.2 km PM2.5: 8.9 µg/m³
1
RBAC Rose Bowl Aquatics Center
4.2 km PM2.5: 0.3 µg/m³ PM10: 0.3 µg/m³
33
united-states-of-america-san-marino-sierra-madre-boulevard
5.0 km 24.1°C 50.0% RH PM2.5: 8.0 µg/m³ PM10: 9.0 µg/m³
35
Buchanan ES (2603)
5.2 km PM2.5: 8.5 µg/m³
32
Arroyo Seco Museum Science Magnet SPAN (4322)
5.2 km PM2.5: 7.7 µg/m³
36
Eagle Rock ES (3507)
6.2 km PM2.5: 8.6 µg/m³

What cities are near South Pasadena?

38 Alhambra 37 San Gabriel 38 Monterey Park 37 Rosemead 33 Altadena 36 Temple City 41 Atwater Village 35 La Cañada Flintridge 39 East Los Angeles 39 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 2026-06-09T05:45 UTC.