Air Quality in Placentia, United States

Windy
30.6°C · 22.9% humidity
30.6°
Feels 30.6°
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast
34 12pm
54
54
15 3pm
26
34
20 6pm
24
47
49 9pm
50
51
52 12am
53
53
53 3am
53
54
54 6am
54
54
54 9am
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.

22.9%
Humidity
59.9 km/h
Wind WSW
1011.3 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
15
3.62 µg/m³
PM10▲
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Placentia?

Temperature & Precipitation

PM2.5 Trend

48h · 2 stations
PM2.53.62 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (5 stations within 25 km)
3.62
Median
3.68
Average
3.03
Low
4.14
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +6.4

What is the 7-day forecast for Placentia?

05-28
26.5° 17.8°
05-29
30.6° 18.9°
05-30
22.6° 16.8°
05-31
29.0° 19.5°
06-01
31.1° 18.2°
06-02
30.3° 16.2°
06-03
30.4° 16.4°
Both models agree Avg diff: 3.4°C

Where are air quality stations near Placentia?

12
Davis Elementary
12.8 km PM2.5: 3.0 µg/m³
16
Villa Intermediate
14.5 km PM2.5: 3.8 µg/m³
16
Kennedy Elementary
15.6 km PM2.5: 3.8 µg/m³
17
Century High School
15.9 km PM2.5: 4.1 µg/m³
15
Monroe Elementary
17.6 km PM2.5: 3.7 µg/m³

What cities are near Placentia?

15 Fullerton 15 Yorba Linda 15 Brea 15 Anaheim 20 La Habra 21 Buena Park 20 Rowland Heights 15 Garden Grove 17 Stanton 15 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 2026-05-28T22:51 UTC.