Air Quality in Brea, 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
51 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
51
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 Brea?

Temperature & Precipitation

PM2.59.55 µg/m³ ✓ WHO
Good
PM1027.45 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: 21.9 · Bias: +12.4

What is the 7-day forecast for Brea?

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 Brea?

38
Davis Elementary
18.0 km PM2.5: 9.2 µg/m³
42
Villa Intermediate
19.8 km PM2.5: 10.1 µg/m³
42
Kennedy Elementary
20.9 km PM2.5: 10.1 µg/m³
40
Century High School
21.3 km PM2.5: 9.5 µg/m³
39
Monroe Elementary
22.8 km PM2.5: 9.4 µg/m³
54
Garfield HS/Monterey CHS (8677)
26.9 km PM2.5: 13.4 µg/m³
33
united-states-of-america-san-marino-sierra-madre-boulevard
30.6 km 31.9°C 36.0% RH PM2.5: 8.0 µg/m³ PM10: 9.0 µg/m³
54
Sierra Park ES (6753)
30.9 km PM2.5: 13.5 µg/m³
52
Sierra Vista ES (6767)
31.1 km PM2.5: 12.8 µg/m³

What cities are near Brea?

48 La Habra 40 Placentia 40 Fullerton 48 Rowland Heights 40 Yorba Linda 40 Anaheim 52 La Mirada 46 Buena Park 52 Hacienda Heights 47 South San Jose Hills

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T18:32 UTC.