Air Quality in Rancho San Diego, United States

Clear
28.7°C · 41.6% humidity
28.7°
Feels 30.1°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast

Nearby Monitoring Stations

AQI Forecast
54 3pm
54
54
60 6pm
58
57
56 9pm
56
55
55 12am
55
54
54 3am
54
54
54 6am
34
54
54 9am
—
—
— 12pm
—
—
AD 728×90

Air Quality Index Trend

45h · 5 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. Current PM2.5 concentration in Rancho San Diego is 1.1× the WHO 24-hour guideline of 15 µg/m³.

41.6%
Humidity
35.6 km/h
Wind WSW
1010.0 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
60
16.35 µg/m³
PM10
38
41.15 µg/m³
050100150200300500

What is the weather forecast for Rancho San Diego?

Temperature & Precipitation

PM2.5 Trend

45h · 5 stations
PM2.516.35 µg/m³ ×1.1 WHO
Moderate
PM1041.15 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250

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

08-03
31.0° 21.8°
08-04
32.0° 24.3°
0.31 mm
08-05
32.9° 23.0°
0.75 mm
08-06
31.4° 20.4°
08-07
28.1° 23.6°
08-08
30.2° 21.5°
08-09
27.9° 19.8°
Both models agree Avg diff: 2.5°C

Where are air quality stations near Rancho San Diego?

59
El Cajon-Redwood Avenue, San Diego, California
4.9 km PM2.5: 15.9 µg/m³
42
Otay Mesa - Donovan Correctional Facility, San Diego, California
18.7 km PM2.5: 10.1 µg/m³
59
Alpine-Victoria Drive, San Diego, California
18.9 km PM2.5: 15.9 µg/m³
43
San Diego - Sherman Elementary School, San Diego, California
19.8 km PM2.5: 10.3 µg/m³
41
San Diego - Sherman Elementary School, San Diego, California
19.8 km PM2.5: 9.8 µg/m³
42
San Diego - Sherman Elementary School, San Diego, California
19.8 km PM2.5: 10.1 µg/m³
43
Ocean View Hills
21.2 km PM2.5: 10.3 µg/m³
40
Smythe Avenue
23.1 km PM2.5: 9.7 µg/m³

What cities are near Rancho San Diego?

60 Casa de Oro-Mount Helix 60 El Cajon 60 Spring Valley 60 Bostonia 60 La Presa 60 La Mesa 60 Lemon Grove 60 Winter Gardens 60 Santee 60 Lakeside
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T01:05 UTC.