Air Quality in Rancho San Diego, United States

Clear
29.6°C · 32.1% humidity
29.6°
Feels 29.6°
44
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations

Nearby Monitoring Stations

AQI Forecast
54 10am
54
54
44 1pm
47
49
50 4pm
31
32
33 7pm
33
33
34 10pm
34
34
34 1am
34
34
34 4am
34
34
34 7am
54
54
AD 728×90

Air Quality Index Trend

48h · 1 stn

Rancho San Diego's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

32.1%
Humidity
39.3 km/h
Wind WSW
1008.6 hPa
Pressure
29.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
44
10.54 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Rancho San Diego?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.510.54 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX29.9
Extreme
AD 300×250
Station readings (6 stations within 25 km)
10.54
Median
10.51
Average
8.6
Low
13.1
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +3.0

What is the 7-day forecast for Rancho San Diego?

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 Rancho San Diego?

72
El Cajon-Redwood Avenue, San Diego, California
4.9 km PM2.5: 22.1 µg/m³
29
El Cajon-Redwood Avenue, San Diego, California
4.9 km PM2.5: 7.0 µg/m³
30
Otay Mesa - Donovan Correctional Facility, San Diego, California
18.7 km PM2.5: 7.2 µg/m³
68
Otay Mesa - Donovan Correctional Facility, San Diego, California
18.7 km PM2.5: 20.2 µg/m³
42
Otay Mesa - Donovan Correctional Facility, San Diego, California
18.7 km PM2.5: 10.1 µg/m³
192
Otay Mesa - Donovan Correctional Facility, San Diego, California
18.7 km PM2.5: 134.9 µg/m³
17
Alpine-Victoria Drive, San Diego, California
18.9 km PM2.5: 4.1 µg/m³
29
San Diego - Sherman Elementary School, San Diego, California
19.8 km PM2.5: 7.0 µg/m³
61
San Diego - Sherman Elementary School, San Diego, California
19.8 km PM2.5: 16.9 µg/m³
9
San Diego - Sherman Elementary School, San Diego, California
19.8 km PM2.5: 2.2 µg/m³

What cities are near Rancho San Diego?

43 Casa de Oro-Mount Helix 42 El Cajon 43 Spring Valley 38 Bostonia 44 La Presa 40 La Mesa 40 Lemon Grove 39 Winter Gardens 36 Santee 40 Lakeside
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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 2026-07-21T20:27 UTC.