Air Quality in La Mesa, United States

Windy
24.2°C · 57.8% humidity
24.2°
Feels 24.2°
31
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations

Nearby Monitoring Stations

AQI Forecast
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Air Quality Index Trend

46h · 9 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.

57.8%
Humidity
41.6 km/h
Wind WSW
1012.8 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
31
7.43 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for La Mesa?

Temperature & Precipitation

PM2.5 Trend

46h · 9 stations
PM2.57.43 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.0
Low
Station readings (6 stations within 25 km)
7.43
Median
7.4
Average
6.37
Low
9.6
High
PM2.5 µg/m³ · Model: 8.2 · Bias: +0.8

What is the 7-day forecast for La Mesa?

10-20
33.0° 23.8°
10-21
26.0° 20.4°
10-22
31.7° 20.6°
10-23
23.8° 21.1°
10-24
24.9° 18.4°
0.25 mm
10-25
29.9° 17.6°
10-26
28.4° 20.8°
0.13 mm
Both models agree Avg diff: 5.2°C

Where are air quality stations near La Mesa?

59
El Cajon-Redwood Avenue, San Diego, California
8.0 km PM2.5: 15.9 µg/m³
35
El Cajon-Redwood Avenue, San Diego, California
8.0 km PM2.5: 8.4 µg/m³
31
Southwest Chula Vista
12.9 km PM2.5: 7.5 µg/m³
37
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 8.9 µg/m³
28
Ocean View Hills
21.8 km PM2.5: 6.8 µg/m³
48
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 11.5 µg/m³
78
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 24.9 µg/m³
40
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 9.6 µg/m³
28
Smythe Avenue
22.9 km PM2.5: 6.7 µg/m³
27
CRSF (EHS Bldg)
23.1 km PM2.5: 6.4 µg/m³

What cities are near La Mesa?

31 Lemon Grove 36 Spring Valley 40 Casa de Oro-Mount Helix 49 El Cajon 32 La Presa 40 Rancho San Diego 46 Santee 54 Bostonia 55 Winter Gardens 31 National City
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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 2026-10-20T23:41 UTC.