Air Quality in La Mesa, United States

Windy
21.0°C · 76.0% humidity
21.0°
Feels 21.0°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
4 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
63 4pm
60
54
65 7pm
48
48
48 10pm
48
48
48 1am
48
48
48 4am
48
73
73 7am
73
73
73 10am
73
73
73 1pm
73
73
Station readings
63
60
54
65
CAMS model adj -2
75
50
50
50
50
50
50
50
50
50
50
50
50
50
75
75
75
75
75
75
75
75
75
75
AD 728×90

PM2.5 Trend (24h)

28h · 1 station
76.0%
Humidity
41.8 km/h
Wind WSW
1013.8 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for La Mesa?

Temperature & Precipitation

PM2.516.39 µg/m³ ×1.1 WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (4 stations within 25 km)
16.39
Median
16.12
Average
14.54
Low
17.17
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -10.5

What is the 7-day forecast for La Mesa?

04-09
22.0° 17.1°
04-10
20.6° 16.8°
7.13 mm
04-11
16.9° 13.7°
24.5 mm
04-12
16.4° 12.9°
4.31 mm
04-13
15.4° 13.4°
0.44 mm
04-14
20.9° 13.2°
04-15
23.0° 17.1°
Both models agree Avg diff: 2.7°C

Where are air quality stations near La Mesa?

53
El Cajon-Redwood Avenue, San Diego, California
8.0 km
67
El Cajon-Redwood Avenue, San Diego, California
8.0 km
45
San Diego - Sherman Elementary School, San Diego, California
12.9 km
50
San Diego - Sherman Elementary School, San Diego, California
12.9 km
64
San Diego - Sherman Elementary School, San Diego, California
12.9 km
57
Ocean View Hills
21.8 km PM2.5: 14.9 µg/m³
45
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km
70
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km
106
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km
54
Smythe Avenue
22.9 km PM2.5: 13.4 µg/m³

What cities are near La Mesa?

60 Lemon Grove 61 Spring Valley 60 Casa de Oro-Mount Helix 59 El Cajon 61 La Presa 61 Rancho San Diego 56 Santee 58 Bostonia 57 Winter Gardens 61 National City

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T19:41 UTC.