Air Quality in La Mesa, United States

Partly Cloudy
17.6°C · 64.9% humidity
17.6°
Feels 17.6°
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations

Nearby Monitoring Stations

AQI Forecast
54 4am
54
54
24 7am
27
29
30 10am
31
32
33 1pm
33
33
34 4pm
34
27
27 7pm
27
27
27 10pm
27
27
34 1am
34
54
AD 728×90

Air Quality Index Trend

48h · 1 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 1.2× the WHO annual guideline of 5 µg/m³.

64.9%
Humidity
14.2 km/h
Wind SW
1011.4 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
24
5.82 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for La Mesa?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.55.82 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (6 stations within 25 km)
5.82
Median
4.89
Average
3.69
Low
8.4
High
PM2.5 µg/m³ · Model: 7.1 · Bias: +1.3

What is the 7-day forecast for La Mesa?

05-29
28.7° 17.6°
05-30
22.1° 16.3°
05-31
25.9° 19.2°
06-01
28.4° 17.6°
06-02
29.6° 15.6°
06-03
26.2° 14.9°
06-04
25.3° 16.6°
Both models agree Avg diff: 2.8°C

Where are air quality stations near La Mesa?

50
El Cajon-Redwood Avenue, San Diego, California
8.0 km PM2.5: 12.0 µg/m³
55
El Cajon-Redwood Avenue, San Diego, California
8.0 km PM2.5: 14.0 µg/m³
21
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 5.0 µg/m³
5
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 1.2 µg/m³
25
San Diego - Sherman Elementary School, San Diego, California
12.9 km PM2.5: 6.0 µg/m³
15
Ocean View Hills
21.8 km PM2.5: 3.7 µg/m³
26
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 6.2 µg/m³
17
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 4.1 µg/m³
17
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 4.1 µg/m³
34
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km PM2.5: 8.2 µg/m³

What cities are near La Mesa?

25 Lemon Grove 24 Spring Valley 24 Casa de Oro-Mount Helix 28 El Cajon 23 La Presa 23 Rancho San Diego 27 Santee 29 Bostonia 29 Winter Gardens 29 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 2026-05-29T14:46 UTC.