Air Quality in San Dimas, United States

Clear
13.9°C · 47.1% humidity
13.9°
Feels 13.9°
45
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast

Nearby Monitoring Stations

AQI Forecast
54 1am
54
54
45 4am
48
49
51 7am
52
52
53 10am
53
53
54 1pm
54
54
54 4pm
54
54
54 7pm
54
54
54 10pm
54
54
AD 728×90

Air Quality Index Trend

48h · 2 stn

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

47.1%
Humidity
22.6 km/h
Wind NNE
1012.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
45
10.85 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for San Dimas?

Temperature & Precipitation

PM2.5 Trend

48h · 2 stations
PM2.510.85 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.7
Low
AD 300×250

What is the 7-day forecast for San Dimas?

06-09
27.8° 13.9°
06-10
29.4° 15.5°
06-11
26.5° 15.5°
06-12
29.9° 16.2°
0.19 mm
06-13
33.1° 17.1°
06-14
28.2° 19.1°
06-15
25.6° 8.9°
Both models agree Avg diff: 2.7°C

Where are air quality stations near San Dimas?

60
Glendora-Laurel, Los Angeles
5.8 km PM2.5: 16.4 µg/m³
33
Glendora-Laurel, Los Angeles
5.8 km PM2.5: 7.9 µg/m³
9
Glendora-Laurel, Los Angeles
5.8 km PM2.5: 2.2 µg/m³
15
Glendora-Laurel, Los Angeles
5.8 km PM2.5: 3.6 µg/m³
19
Glendora-Laurel, Los Angeles
5.8 km PM2.5: 4.6 µg/m³

What cities are near San Dimas?

45 La Verne 45 Glendora 42 Pomona 46 Covina 42 Claremont 42 Diamond Bar 36 Azusa 40 Vincent 42 Walnut 41 West Covina
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T11:45 UTC.