Air Quality in La Mesa, United States

Windy
29.9°C · 52.7% humidity
29.9°
Feels 33.3°
38
Good
Air quality is satisfactory. Enjoy outdoor activities.
7 stations

Nearby Monitoring Stations

AQI Forecast
66 8am
66
66
38 11am
46
52
56 2pm
59
61
62 5pm
51
52
65 8pm
53
53
53 11pm
54
54
54 2am
54
54
54 5am
54
54
AD 728×90

Air Quality Index Trend

45h · 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.

52.7%
Humidity
40.7 km/h
Wind WNW
1015.5 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
38
9.03 µg/m³
PM10
38
41.2 µg/m³
050100150200300500

What is the weather forecast for La Mesa?

Temperature & Precipitation

PM2.5 Trend

45h · 9 stations
PM2.59.03 µg/m³ ✓ WHO
Good
PM1041.2 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (7 stations within 25 km)
9.03
Median
12.31
Average
5.8
Low
18.8
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +7.3

What is the 7-day forecast for La Mesa?

09-05
29.9° 25.2°
09-06
31.1° 22.8°
4.63 mm
09-07
31.6° 24.9°
09-08
31.3° 19.6°
09-09
33.7° 20.8°
09-10
31.5° 19.7°
1.5 mm
09-11
37.2° 23.0°
Both models agree Avg diff: 3.7°C

Where are air quality stations near La Mesa?

24
El Cajon-Redwood Avenue, San Diego, California
8.0 km PM2.5: 5.8 µg/m³
41
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 9.8 µg/m³
35
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 8.4 µg/m³
39
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 9.4 µg/m³
40
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 9.6 µg/m³
56
Ocean View Hills
21.8 km PM2.5: 14.7 µg/m³
65
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 18.8 µg/m³
140
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 51.3 µg/m³
16
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 3.8 µg/m³
51
Smythe Avenue
22.9 km PM2.5: 12.3 µg/m³

What cities are near La Mesa?

42 Lemon Grove 42 Spring Valley 30 Casa de Oro-Mount Helix 25 El Cajon 48 La Presa 35 Rancho San Diego 31 Santee 25 Bostonia 30 Winter Gardens 46 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 2026-09-05T18:58 UTC.