Air Quality in La Mesa, United States

Clear
28.7°C · 41.6% humidity
28.7°
Feels 30.1°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast

Nearby Monitoring Stations

AQI Forecast
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AD 728×90

Air Quality Index Trend

45h · 8 stn

La Mesa's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in La Mesa is 1.1× the WHO 24-hour guideline of 15 µg/m³.

41.6%
Humidity
35.6 km/h
Wind WSW
1010.0 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
60
16.35 µg/m³
PM10
38
41.15 µg/m³
050100150200300500

What is the weather forecast for La Mesa?

Temperature & Precipitation

PM2.5 Trend

45h · 8 stations
PM2.516.35 µg/m³ ×1.1 WHO
Moderate
PM1041.15 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250

What is the 7-day forecast for La Mesa?

08-03
31.0° 21.8°
08-04
32.0° 24.3°
0.31 mm
08-05
32.9° 23.0°
0.75 mm
08-06
31.4° 20.4°
08-07
28.1° 23.6°
08-08
30.2° 21.5°
08-09
27.9° 19.8°
Both models agree Avg diff: 2.5°C

Where are air quality stations near La Mesa?

46
El Cajon-Redwood Avenue, San Diego, California
8.0 km PM2.5: 11.0 µg/m³
41
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 9.8 µg/m³
41
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 9.8 µg/m³
43
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 10.3 µg/m³
42
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 10.1 µg/m³
42
Ocean View Hills
21.8 km PM2.5: 10.0 µg/m³
42
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 10.1 µg/m³
35
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 8.4 µg/m³
40
Smythe Avenue
22.9 km PM2.5: 9.5 µg/m³
34
CRSF (EHS Bldg)
23.1 km PM2.5: 8.1 µg/m³

What cities are near La Mesa?

60 Lemon Grove 60 Spring Valley 60 Casa de Oro-Mount Helix 60 El Cajon 60 La Presa 60 Rancho San Diego 60 Santee 60 Bostonia 60 Winter Gardens 60 National City
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T03:02 UTC.