Air Quality in South Pasadena, United States

Clear
16.4°C · 32.9% humidity
16.4°
Feels 16.4°
13
Good
Air quality is satisfactory. Enjoy outdoor activities.
96 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
5 4am
5
5
13 7am
11
9
8 10am
7
7
6 1pm
6
6
5 4pm
5
0
0 7pm
0
0
5 10pm
5
5
5 1am
5
5
Station readings
4
CAMS model adj -49
54
54
54
54
54
54
54
54
54
54
54
54
54
54
34
34
34
34
54
54
54
54
54
54
AD 728×90

Air Quality Index Trend

34h · 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.

32.9%
Humidity
25.9 km/h
Wind NNE
1012.0 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
13
3.17 µg/m³
PM10▲
31
34.3 µg/m³
050100150200300500

What is the weather forecast for South Pasadena?

Temperature & Precipitation

PM2.5 Trend

34h · 1 station
PM2.53.17 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (96 stations within 25 km)
3.17
Median
3.55
Average
0.15
Low
14.5
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +7.7

What is the 7-day forecast for South Pasadena?

05-29
31.7° 16.4°
05-30
20.7° 12.0°
05-31
29.4° 17.7°
06-01
31.4° 13.9°
06-02
30.2° 12.5°
06-03
29.9° 10.7°
06-04
25.3° 14.7°
Both models agree Avg diff: 3.5°C

Where are air quality stations near South Pasadena?

12
San Pascual ES (6493)
2.1 km PM2.5: 2.8 µg/m³
15
Sierra Vista ES (6767)
2.4 km PM2.5: 3.6 µg/m³
13
Annandale ES (2151)
3.6 km PM2.5: 3.1 µg/m³
18
El Sereno ES (3562)
3.8 km PM2.5: 4.2 µg/m³
15
Sierra Park ES (6753)
4.2 km PM2.5: 3.6 µg/m³
1
RBAC Rose Bowl Aquatics Center
4.2 km PM2.5: 0.2 µg/m³ PM10: 0.2 µg/m³
4
united-states-of-america-san-marino-sierra-madre-boulevard
5.0 km 20.4°C 54.0% RH PM2.5: 1.0 µg/m³ PM10: 1.0 µg/m³
12
Buchanan ES (2603)
5.2 km PM2.5: 2.9 µg/m³
11
Arroyo Seco Museum Science Magnet SPAN (4322)
5.2 km PM2.5: 2.7 µg/m³
12
Eagle Rock ES (3507)
6.2 km PM2.5: 3.0 µg/m³

What cities are near South Pasadena?

14 Alhambra 13 San Gabriel 14 Monterey Park 13 Rosemead 12 Altadena 12 Temple City 18 Atwater Village 14 La Cañada Flintridge 15 East Los Angeles 15 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 2026-05-29T14:35 UTC.