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.
48 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
12 5pm
12
12
22 8pm
19
17
16 11pm
15
14
13 2am
13
13
12 5am
12
0
0 8am
0
0
12 11am
12
12
0 2pm
0
0
Station readings
23
16
13
12
CAMS model adj -42
54
54
54
54
54
54
54
54
54
54
54
54
54
54
34
34
34
34
54
54
54
34
34
34
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
5.23 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Millbrae?

Temperature & Precipitation

PM2.5 Trend

43h · 1 station
PM2.55.23 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (48 stations within 25 km)
5.23
Median
5.09
Average
3.29
Low
12.19
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?

19
Belle Air School
3.3 km PM2.5: 4.6 µg/m³
20
Parkside Intermediate School
3.4 km PM2.5: 4.9 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
19
Portola Elementary
6.5 km PM2.5: 4.5 µg/m³
51
Rise South City Office
6.7 km PM2.5: 12.2 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: 7.2 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 29 South San Francisco 22 San Mateo 21 Pacifica 21 Foster City 18 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 2026-06-09T03:20 UTC.