Air Quality in Placentia, United States

Clear
30.0°C · 37.3% humidity
30.0°
Feels 30.0°
46
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

AQI Forecast
66 8pm
66
66
46 11pm
48
50
51 2am
52
52
65 5am
65
65
54 8am
66
66
66 11am
66
66
66 2pm
66
66
66 5pm
66
66
AD 728×90

Air Quality Index Trend

45h · 127 stn

Placentia's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

37.3%
Humidity
33.9 km/h
Wind SW
1010.1 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
46
10.98 µg/m³
PM10
44
48.05 µg/m³
050100150200300500

What is the weather forecast for Placentia?

Temperature & Precipitation

PM2.5 Trend

45h · 127 stations
PM2.510.98 µg/m³ ✓ WHO
Good
PM1048.05 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250

What is the 7-day forecast for Placentia?

08-03
34.0° 23.6°
08-04
32.4° 24.7°
08-05
35.9° 23.7°
08-06
34.3° 20.7°
08-07
29.7° 24.1°
08-08
32.9° 21.1°
08-09
30.9° 20.1°
Both models agree Avg diff: 2.7°C

Where are air quality stations near Placentia?

11
Davis Elementary
12.8 km PM2.5: 2.7 µg/m³
11
Villa Intermediate
14.5 km PM2.5: 2.7 µg/m³
20
Kennedy Elementary
15.6 km PM2.5: 4.8 µg/m³
29
Century High School
15.9 km PM2.5: 7.0 µg/m³
8
Monroe Elementary
17.6 km PM2.5: 2.0 µg/m³

What cities are near Placentia?

55 Fullerton 51 Yorba Linda 58 Brea 55 Anaheim 75 La Habra 74 Buena Park 75 Rowland Heights 46 Garden Grove 74 Stanton 28 North Tustin
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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 2026-08-08T06:30 UTC.