Air Quality in Belmont, United States

Partly Cloudy
22.8°C · 67.8% humidity
22.8°
Feels 22.8°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
23 stations

Nearby Monitoring Stations

AQI Forecast
34 9am
34
34
28 12pm
30
31
32 3pm
25
26
33 6pm
33
34
34 9pm
34
34
34 12am
34
34
34 3am
34
27
34 6am
27
27
AD 728×90

Air Quality Index Trend

45h · 103 stn

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

67.8%
Humidity
10.2 km/h
Wind NNW
1016.6 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
28
6.72 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Belmont?

Temperature & Precipitation

PM2.5 Trend

45h · 103 stations
PM2.56.72 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (23 stations within 25 km)
6.72
Median
5.89
Average
4.55
Low
13.1
High
PM2.5 µg/m³ · Model: 7.1 · Bias: +0.4

What is the 7-day forecast for Belmont?

09-05
25.7° 13.0°
09-06
26.7° 14.7°
09-07
28.3° 11.0°
09-08
27.4° 12.3°
09-09
24.8° 15.3°
09-10
24.4° 13.4°
09-11
21.2° 14.6°
0.13 mm
Both models agree Avg diff: 3.1°C

Where are air quality stations near Belmont?

19
Emerald Hills
7.3 km PM2.5: 4.6 µg/m³
53
Redwood City, San Mateo, California
7.6 km PM2.5: 13.1 µg/m³
20
Berkeley-Palo Alto
13.5 km PM2.5: 4.7 µg/m³
21
Belle Air School
16.2 km PM2.5: 5.1 µg/m³
24
Garden Ave Residence
16.3 km PM2.5: 5.8 µg/m³
23
Parkside Intermediate School
16.5 km PM2.5: 5.4 µg/m³
22
San Bruno School District Office
16.8 km PM2.5: 5.2 µg/m³
25
Pacific Ave Residence
18.1 km PM2.5: 5.9 µg/m³
24
Acterra!
18.1 km PM2.5: 5.7 µg/m³
20
Brentwood Park
19.0 km PM2.5: 4.9 µg/m³

What cities are near Belmont?

31 San Carlos 27 Foster City 39 Redwood City 26 San Mateo 25 Burlingame 31 Menlo Park 24 Millbrae 23 East Palo Alto 21 Palo Alto 23 San Bruno
Get AQI alerts for Belmont

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T19:30 UTC.