Air Quality in South Pasadena, United States

Rain
17.0°C · 50.6% humidity
17.0°
Feels 17.0°
52
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
92 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
52 6pm
52
30
49 9pm
49
49
49 12am
49
49
49 3am
49
49
49 6am
49
49
49 9am
49
49
49 12pm
49
49
49 3pm
24
24
Station readings
52
52
30
CAMS model adj -26
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
50
50
AD 728×90

PM2.5 Trend (24h)

32h · 3 stations
50.6%
Humidity
55.0 km/h
Wind SSW
1010.9 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for South Pasadena?

Temperature & Precipitation

PM2.512.7 µg/m³ ✓ WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (92 stations within 25 km)
12.7
Median
12.65
Average
0.9
Low
19.51
High
PM2.5 µg/m³ · Model: 36.9 · Bias: +24.2

What is the 7-day forecast for South Pasadena?

04-09
22.8° 12.7°
04-10
17.0° 11.2°
12.69 mm
04-11
13.9° 9.6°
16.19 mm
04-12
12.5° 6.4°
0.69 mm
04-13
13.8° 7.1°
0.06 mm
04-14
20.0° 10.2°
04-15
22.2° 14.9°
Both models agree Avg diff: 2.7°C

Where are air quality stations near South Pasadena?

47
San Pascual ES (6493)
2.1 km PM2.5: 11.2 µg/m³
52
Sierra Vista ES (6767)
2.4 km PM2.5: 12.5 µg/m³
48
Annandale ES (2151)
3.6 km PM2.5: 11.5 µg/m³
53
El Sereno ES (3562)
3.8 km PM2.5: 13.2 µg/m³
52
Sierra Park ES (6753)
4.2 km PM2.5: 12.7 µg/m³
5
RBAC Rose Bowl Aquatics Center
4.2 km PM2.5: 1.3 µg/m³ PM10: 1.8 µg/m³
46
united-states-of-america-san-marino-sierra-madre-boulevard
5.0 km 32.6°C 34.0% RH PM2.5: 11.0 µg/m³ PM10: 12.0 µg/m³
52
Buchanan ES (2603)
5.2 km PM2.5: 12.6 µg/m³
48
Arroyo Seco Museum Science Magnet SPAN (4322)
5.2 km PM2.5: 11.6 µg/m³
50
Eagle Rock ES (3507)
6.2 km PM2.5: 12.0 µg/m³

What cities are near South Pasadena?

52 Alhambra 52 San Gabriel 51 Monterey Park 52 Rosemead 54 Altadena 52 Temple City 52 Atwater Village 54 La Cañada Flintridge 52 East Los Angeles 52 Boyle Heights

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T21:17 UTC.