Air Quality in South Pasadena, United States

Windy
30.9°C · 28.1% humidity
30.9°
Feels 30.9°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
22 1pm
10
23
22 4pm
23
23
23 7pm
23
23
23 10pm
11
11
11 1am
11
11
11 4am
23
23
23 7am
11
23
23 10am
23
23
Station readings
22
10
23
CAMS model adj -43
66
66
66
66
66
66
66
66
66
66
54
54
54
54
54
54
66
66
66
54
66
66
66
66
AD 728×90

Air Quality Index Trend

47h · 2 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.

28.1%
Humidity
40.1 km/h
Wind SSW
1010.9 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
22
5.33 µg/m³
PM10▲
60
73.05 µg/m³
050100150200300500

What is the weather forecast for South Pasadena?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.55.33 µg/m³ ✓ WHO
Good
PM1073.05 µg/m³
Moderate
UV INDEX17.4
Extreme
AD 300×250
Station readings (2 stations within 25 km)
5.33
Median
6.03
Average
2.06
Low
10.0
High
PM2.5 µg/m³ · Model: 36.45 · Bias: +31.1

What is the 7-day forecast for South Pasadena?

08-03
34.6° 20.7°
08-04
30.7° 23.0°
08-05
34.0° 21.8°
08-06
34.9° 18.0°
08-07
30.6° 20.7°
08-08
31.0° 18.0°
08-09
31.1° 16.5°
Both models agree Avg diff: 3.2°C

Where are air quality stations near South Pasadena?

49
San Pascual ES (6493)
2.1 km PM2.5: 11.7 µg/m³
55
Sierra Vista ES (6767)
2.4 km PM2.5: 13.9 µg/m³
51
Annandale ES (2151)
3.6 km PM2.5: 12.3 µg/m³
55
El Sereno ES (3562)
3.8 km PM2.5: 13.8 µg/m³
53
Sierra Park ES (6753)
4.2 km PM2.5: 13.1 µg/m³
9
RBAC Rose Bowl Aquatics Center
4.2 km PM2.5: 2.2 µg/m³ PM10: 2.4 µg/m³
42
united-states-of-america-san-marino-sierra-madre-boulevard
5.0 km 42.1°C 23.0% RH PM2.5: 10.0 µg/m³ PM10: 10.0 µg/m³
51
Buchanan ES (2603)
5.2 km PM2.5: 12.3 µg/m³
50
Arroyo Seco Museum Science Magnet SPAN (4322)
5.2 km PM2.5: 12.0 µg/m³
50
Eagle Rock ES (3507)
6.2 km PM2.5: 11.9 µg/m³

What cities are near South Pasadena?

30 Alhambra 34 San Gabriel 29 Monterey Park 33 Rosemead 21 Altadena 36 Temple City 18 Atwater Village 16 La Cañada Flintridge 25 East Los Angeles 24 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 2026-08-07T23:46 UTC.