Air Quality in Millbrae, United States

Windy
12.3°C · 78.6% humidity
12.3°
Feels 12.3°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
47 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
16 6pm
16
16
22 9pm
20
19
18 12am
18
17
17 3am
17
16
16 6am
0
0
0 9am
0
16
16 12pm
16
0
0 3pm
0
0
Station readings
16
13
12
19
CAMS model adj -38
54
54
54
54
54
54
54
54
54
54
54
54
54
34
34
34
34
54
54
54
34
34
34
27
AD 728×90

Air Quality Index Trend

43h · 1 stn

Millbrae's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

78.6%
Humidity
73.9 km/h
Wind WNW
1016.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
22
5.29 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Millbrae?

Temperature & Precipitation

PM2.5 Trend

43h · 1 station
PM2.55.29 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (47 stations within 25 km)
5.29
Median
5.16
Average
3.4
Low
9.77
High
PM2.5 µg/m³ · Model: 9.65 · Bias: +4.4

What is the 7-day forecast for Millbrae?

06-09
14.6° 12.3°
06-10
16.5° 13.0°
06-11
17.4° 13.2°
06-12
16.1° 12.3°
0.13 mm
06-13
15.2° 11.8°
06-14
18.3° 13.0°
06-15
16.3° 12.0°
Both models agree Avg diff: 1.4°C

Where are air quality stations near Millbrae?

20
Belle Air School
3.3 km PM2.5: 4.7 µg/m³
21
Parkside Intermediate School
3.4 km PM2.5: 5.1 µg/m³
28
Parkside Intermediate School (redeployment)
3.4 km PM2.5: 6.6 µg/m³
19
Brentwood Park
5.9 km PM2.5: 4.5 µg/m³
18
Rollingwood Elementary
6.1 km PM2.5: 4.4 µg/m³
27
Portola Elementary
6.5 km PM2.5: 6.4 µg/m³
41
Rise South City Office
6.7 km PM2.5: 9.8 µg/m³
21
California and Cypress Ave
6.8 km PM2.5: 5.0 µg/m³
30
Cypress and Pine Playlot
6.9 km PM2.5: 7.1 µg/m³
21
California and Hawthorn Pl
7.0 km PM2.5: 5.0 µg/m³

What cities are near Millbrae?

22 Burlingame 21 San Bruno 27 South San Francisco 22 San Mateo 23 Pacifica 21 Foster City 19 Belmont 23 Visitacion Valley 22 Daly City 25 Bayview-Hunters Point
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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 2026-06-09T04:59 UTC.