Air Quality in Placentia, United States

Drizzle
21.1°C · 38.5% humidity
21.1°
Feels 21.1°
40
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
50 6pm
51
25
47 9pm
47
47
47 12am
47
47
47 3am
47
47
47 6am
47
47
47 9am
47
47
47 12pm
47
47
47 3pm
22
22
Station readings
50
51
25
CAMS model adj -28
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 · 2 stations
38.5%
Humidity
83.8 km/h
Wind WSW
1010.9 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Placentia?

Temperature & Precipitation

PM2.59.58 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (5 stations within 25 km)
9.58
Median
9.55
Average
9.12
Low
9.92
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: 2.8°C

Where are air quality stations near Placentia?

38
Davis Elementary
12.8 km PM2.5: 9.0 µg/m³
42
Villa Intermediate
14.5 km PM2.5: 10.0 µg/m³
40
Kennedy Elementary
15.6 km PM2.5: 9.7 µg/m³
40
Century High School
15.9 km PM2.5: 9.7 µg/m³
39
Monroe Elementary
17.6 km PM2.5: 9.3 µg/m³

What cities are near Placentia?

40 Fullerton 40 Yorba Linda 40 Brea 40 Anaheim 47 La Habra 46 Buena Park 45 Rowland Heights 40 Garden Grove 39 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 2026-04-09T21:04 UTC.