Air Quality in Placentia, United States

Windy
20.2°C · 56.3% humidity
20.2°
Feels 20.2°
40
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
50 3pm
52
52
18 6pm
45
45
45 9pm
45
45
45 12am
45
45
45 3am
45
45
45 6am
45
45
45 9am
45
45
45 12pm
45
45
Station readings
50
52
52
18
CAMS model adj -30
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
AD 728×90

PM2.5 Trend (24h)

33h · 2 stations
56.3%
Humidity
41.8 km/h
Wind SSE
1013.2 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Placentia?

Temperature & Precipitation

PM2.59.55 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (5 stations within 25 km)
9.55
Median
9.77
Average
9.38
Low
10.42
High
PM2.5 µg/m³ · Model: 7.4 · Bias: -2.2

What is the 7-day forecast for Placentia?

04-09
25.6° 17.4°
04-10
21.1° 15.5°
17.44 mm
04-11
18.6° 14.8°
22.62 mm
04-12
18.1° 12.5°
0.44 mm
04-13
17.6° 12.9°
0.06 mm
04-14
21.7° 15.0°
04-15
24.5° 18.7°
Both models agree Avg diff: 2.0°C

Where are air quality stations near Placentia?

38
Davis Elementary
12.8 km PM2.5: 9.2 µg/m³
42
Villa Intermediate
14.5 km PM2.5: 10.1 µg/m³
42
Kennedy Elementary
15.6 km PM2.5: 10.1 µg/m³
40
Century High School
15.9 km PM2.5: 9.5 µg/m³
39
Monroe Elementary
17.6 km PM2.5: 9.4 µg/m³

What cities are near Placentia?

40 Fullerton 40 Yorba Linda 40 Brea 40 Anaheim 48 La Habra 46 Buena Park 48 Rowland Heights 40 Garden Grove 40 Stanton 40 North Tustin

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T18:34 UTC.