Air Quality in La Mesa, United States

Windy
29.8°C · 30.1% humidity
29.8°
Feels 29.8°
48
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast
54 12pm
54
54
48 3pm
30
31
32 6pm
32
33
33 9pm
33
34
34 12am
34
34
34 3am
34
34
54 6am
54
34
34 9am
54
54
AD 728×90

Air Quality Index Trend

47h · 7 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.

30.1%
Humidity
50.2 km/h
Wind WSW
1006.2 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
48
11.4 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for La Mesa?

Temperature & Precipitation

PM2.5 Trend

47h · 7 stations
PM2.511.4 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250
Station readings (8 stations within 25 km)
11.4
Median
8.86
Average
6.01
Low
18.3
High
PM2.5 µg/m³ · Model: 10.85 · Bias: -0.6

What is the 7-day forecast for La Mesa?

07-21
29.6° 24.8°
07-22
29.8° 24.7°
07-23
29.6° 24.3°
0.06 mm
07-24
31.2° 22.4°
07-25
31.8° 23.7°
07-26
31.9° 21.7°
07-27
31.0° 23.5°
Both models agree Avg diff: 3.3°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
67
El Cajon-Redwood Avenue, San Diego, California
8.0 km PM2.5: 19.7 µg/m³
62
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 17.3 µg/m³
42
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 10.1 µg/m³
59
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 15.9 µg/m³
28
Ocean View Hills
21.8 km PM2.5: 6.8 µg/m³
51
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 12.1 µg/m³
25
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 6.0 µg/m³
30
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 7.2 µg/m³
40
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 9.6 µg/m³

What cities are near La Mesa?

44 Lemon Grove 48 Spring Valley 53 Casa de Oro-Mount Helix 54 El Cajon 43 La Presa 52 Rancho San Diego 52 Santee 54 Bostonia 53 Winter Gardens 34 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 2026-07-21T22:38 UTC.