Air Quality in South Pasadena, United States
Windy
31.7°C · 16.1% humidity
31.7°
Feels 31.7°
10
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations
Nearby Monitoring Stations
AQI Forecast
Calibrated
12
2pm
12
12
10
5pm
0
0
12
8pm
12
12
12
11pm
12
12
12
2am
12
12
12
5am
12
12
12
8am
12
12
12
11am
12
12
Station readings
17
8
4
4
CAMS model
adj -42
54
54
54
54
34
34
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
Air Quality Index Trend
38h · 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.
16.1%
Humidity
42.6 km/h
Wind SSW
1011.7 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
2.34 µg/m³
PM10▲
27.4 µg/m³
050100150200300500
What is the weather forecast for South Pasadena?
Temperature & Precipitation
PM2.5 Trend
38h · 1 stationPM2.52.34 µg/m³
✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX5.9
High
Station readings (3 stations within 25 km)
2.34
Median
5.53
Average
0.27
Low
15.0
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +8.5
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: 4.1°C
Where are air quality stations near South Pasadena?
23
San Pascual ES (6493)
24
Sierra Vista ES (6767)
25
Annandale ES (2151)
26
El Sereno ES (3562)
24
Sierra Park ES (6753)
1
RBAC Rose Bowl Aquatics Center
4
united-states-of-america-san-marino-sierra-madre-boulevard
25
Buchanan ES (2603)
23
Arroyo Seco Museum Science Magnet SPAN (4322)
24
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 2026-05-29T00:19 UTC.