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
16 8pm
15
13
13 11pm
13
13
13 2am
13
13
13 5am
13
25
25 8am
25
25
25 11am
38
13
25 2pm
25
25
25 5pm
25
38
Station readings
16
15
CAMS model adj -12
25
25
25
25
25
25
25
25
25
25
25
37
37
37
37
37
50
25
37
37
37
37
37
50
AD 728×90

PM2.5 Trend (24h)

25h · 104 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

PM2.53.01 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (20 stations within 25 km)
3.01
Median
4.34
Average
2.23
Low
27.61
High
PM2.5 µg/m³ · Model: 7.4 · Bias: +4.4

What is the 7-day forecast for Belmont?

04-09
18.7° 13.2°
0.62 mm
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°
Both models agree Avg diff: 2.1°C

Where are air quality stations near Belmont?

15
Emerald Hills
7.3 km PM2.5: 3.7 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
14
Berkeley-Palo Alto
13.5 km PM2.5: 3.3 µg/m³
84
Belle Air School
16.2 km PM2.5: 28.0 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
18
Acterra!
18.1 km PM2.5: 4.2 µg/m³
11
Brentwood Park
19.0 km PM2.5: 2.7 µg/m³

What cities are near Belmont?

12 San Carlos 15 Foster City 14 Redwood City 13 San Mateo 13 Burlingame 21 Menlo Park 13 Millbrae 21 East Palo Alto 21 Palo Alto 14 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 2026-04-09T23:21 UTC.