Air Quality in La Mesa, United States

Windy
21.0°C · 76.0% humidity
21.0°
Feels 21.0°
55
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
4 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
61 5pm
54
52
52 8pm
49
49
49 11pm
49
49
49 2am
49
49
49 5am
74
74
74 8am
74
74
74 11am
74
74
74 2pm
74
49
Station readings
61
54
52
52
CAMS model adj -1
50
50
50
50
50
50
50
50
50
50
50
50
50
75
75
75
75
75
75
75
75
75
75
50
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

PM2.514.11 µg/m³ ✓ WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (4 stations within 25 km)
14.11
Median
13.8
Average
12.1
Low
14.88
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -8.2

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
38
El Cajon-Redwood Avenue, San Diego, California
8.0 km
45
San Diego - Sherman Elementary School, San Diego, California
12.9 km
40
San Diego - Sherman Elementary School, San Diego, California
12.9 km
48
Ocean View Hills
21.8 km PM2.5: 11.4 µg/m³
106
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km
58
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km
45
Otay Mesa - Donovan Correctional Facility, San Diego, California
22.7 km
45
Smythe Avenue
22.9 km PM2.5: 10.9 µg/m³
39
CRSF (EHS Bldg)
23.1 km PM2.5: 9.3 µg/m³

What cities are near La Mesa?

55 Lemon Grove 57 Spring Valley 55 Casa de Oro-Mount Helix 55 El Cajon 57 La Presa 57 Rancho San Diego 51 Santee 54 Bostonia 53 Winter Gardens 57 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 2026-04-09T20:31 UTC.