What is the air quality in San Dimas today?

The current Air Quality Index (AQI) in San Dimas is 50 (Good). PM2.5 concentration is 12.0 µg/m³.

What is the temperature in San Dimas right now?

The current temperature in San Dimas is 29.6°C (feels like 29.6°C). Humidity is 9.0% and wind speed is 36.2 km/h.

Is it safe to go outside in San Dimas?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in San Dimas, United States

Clear

29.6°C · 9.0% humidity

29.6°

Feels 29.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

46h · 104 stn

View full history →

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.

9.0%

Humidity

36.2 km/h

Wind SSW

1017.7 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

12.0 µg/m³

PM10

41.2 µg/m³

050100150200300500

What is the weather forecast for San Dimas?

Temperature & Precipitation

PM2.5 Trend

46h · 104 stations

PM2.512.0 µg/m³ ✓ WHO

Good

PM1041.2 µg/m³

Good

UV INDEX0.0

Low

Station readings (1 station within 25 km)

12.0

Median

12.0

Average

12.0

Low

12.0

High

PM2.5 µg/m³ · Model: 13.5 · Bias: +1.5

Both models agree Avg diff: 4.3°C

Where are air quality stations near San Dimas?

Glendora-Laurel, Los Angeles

5.8 km PM2.5: 12.0 µg/m³

What cities are near San Dimas?

50 La Verne 50 Glendora 50 Pomona 47 Covina 50 Claremont 50 Diamond Bar 45 Azusa 40 Vincent 50 Walnut 38 West Covina

Get AQI alerts for San Dimas

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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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 2026-10-20T20:57 UTC.