Air Quality in Belmont, United States

Drizzle
16.3°C · 60.3% humidity
16.3°
Feels 16.3°
12
Good
Air quality is satisfactory. Enjoy outdoor activities.
20 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
15 9pm
15
14
14 12am
14
14
14 3am
14
14
14 6am
26
26
26 9am
26
26
39 12pm
14
26
26 3pm
26
26
26 6pm
39
39
Station readings
15
15
CAMS model adj -11
25
25
25
25
25
25
25
25
25
25
37
37
37
37
37
50
25
37
37
37
37
37
50
50
AD 728×90

PM2.5 Trend (24h)

25h · 106 stations
60.3%
Humidity
48.0 km/h
Wind WSW
1010.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Belmont?

Temperature & Precipitation

PM2.53.04 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (20 stations within 25 km)
3.04
Median
4.16
Average
2.3
Low
25.74
High
PM2.5 µg/m³ · Model: 7.4 · Bias: +4.4

What is the 7-day forecast for Belmont?

04-10
16.3° 11.5°
1.0 mm
04-11
16.0° 10.3°
04-12
12.4° 9.2°
3.38 mm
04-13
12.8° 7.4°
0.06 mm
04-14
15.2° 7.6°
04-15
17.4° 9.5°
04-16
18.0° 9.0°
Both models agree Avg diff: 2.1°C

Where are air quality stations near Belmont?

15
Emerald Hills
7.3 km PM2.5: 3.5 µg/m³
18
Redwood City, San Mateo, California
7.6 km
18
Redwood City, San Mateo, California
7.6 km
17
Redwood City, San Mateo, California
7.6 km
18
Redwood City, San Mateo, California
7.6 km
12
Berkeley-Palo Alto
13.5 km PM2.5: 2.8 µg/m³
75
Belle Air School
16.2 km PM2.5: 23.4 µg/m³
12
Parkside Intermediate School
16.5 km PM2.5: 3.0 µg/m³
13
San Bruno School District Office
16.8 km PM2.5: 3.1 µg/m³
15
Acterra!
18.1 km PM2.5: 3.5 µg/m³

What cities are near Belmont?

12 San Carlos 13 Foster City 13 Redwood City 13 San Mateo 13 Burlingame 18 Menlo Park 13 Millbrae 18 East Palo Alto 18 Palo Alto 13 San Bruno

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T00:12 UTC.