Air Quality in Millbrae, United States

Windy
14.9°C · 69.3% humidity
14.9°
Feels 14.9°
12
Good
Air quality is satisfactory. Enjoy outdoor activities.
46 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
17 6pm
17
16
13 9pm
13
13
13 12am
13
13
13 3am
13
13
13 6am
25
25
25 9am
25
25
38 12pm
13
25
25 3pm
25
25
Station readings
17
17
16
CAMS model adj -12
25
25
25
25
25
25
25
25
25
25
25
25
25
37
37
37
37
37
50
25
37
37
37
37
AD 728×90

PM2.5 Trend (24h)

25h · 106 stations
69.3%
Humidity
71.1 km/h
Wind WSW
1010.4 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Millbrae?

Temperature & Precipitation

PM2.53.02 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (46 stations within 25 km)
3.02
Median
3.61
Average
1.88
Low
13.97
High
PM2.5 µg/m³ · Model: 7.4 · Bias: +4.4
Both models agree Avg diff: 1.3°C

Where are air quality stations near Millbrae?

83
Belle Air School
3.3 km PM2.5: 27.2 µg/m³
12
Parkside Intermediate School
3.4 km PM2.5: 3.0 µg/m³
13
San Bruno School District Office
3.7 km PM2.5: 3.1 µg/m³
11
Brentwood Park
5.9 km PM2.5: 2.7 µg/m³
10
Rollingwood Elementary
6.1 km PM2.5: 2.4 µg/m³
10
Portola Elementary
6.5 km PM2.5: 2.4 µg/m³
17
Rise South City Office
6.7 km PM2.5: 4.1 µg/m³
12
California and Cypress Ave
6.8 km PM2.5: 2.9 µg/m³
16
Cypress and Pine Playlot
6.9 km PM2.5: 3.8 µg/m³
12
California and Hawthorn Pl
7.0 km PM2.5: 3.0 µg/m³

What cities are near Millbrae?

12 Burlingame 15 San Bruno 16 South San Francisco 12 San Mateo 11 Pacifica 17 Foster City 12 Belmont 16 Visitacion Valley 15 Daly City 16 Bayview-Hunters Point

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T21:31 UTC.