Air Quality in Placentia, United States

Windy
31.6°C · 26.9% humidity
31.6°
Feels 31.6°
23
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
54 11am
54
54
23 2pm
32
38
43 5pm
46
48
50 8pm
51
52
52 11pm
53
53
53 2am
54
54
54 5am
54
54
54 8am
54
54
AD 728×90

Air Quality Index Trend

48h · 2 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.

26.9%
Humidity
57.6 km/h
Wind SSW
1005.6 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
23
5.53 µg/m³
PM10▲
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Placentia?

Temperature & Precipitation

PM2.5 Trend

48h · 2 stations
PM2.55.53 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX24.9
Extreme
AD 300×250
Station readings (1 station within 25 km)
5.53
Median
5.53
Average
5.53
Low
5.53
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +8.0

What is the 7-day forecast for Placentia?

07-21
30.6° 25.2°
07-22
31.6° 25.0°
07-23
31.6° 24.1°
07-24
35.1° 23.9°
07-25
33.7° 25.1°
07-26
34.2° 22.2°
07-27
33.9° 25.1°
Both models agree Avg diff: 3.1°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
22
Century High School
15.9 km PM2.5: 5.3 µg/m³
8
Monroe Elementary
17.6 km PM2.5: 2.0 µg/m³

What cities are near Placentia?

23 Fullerton 23 Yorba Linda 23 Brea 23 Anaheim 38 La Habra 39 Buena Park 50 Rowland Heights 23 Garden Grove 34 Stanton 23 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 2026-07-21T21:43 UTC.