Air Quality in Rancho San Diego, United States

Clear
33.0°C · 8.9% humidity
33.0°
Feels 33.0°
58
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
10 stations

Nearby Monitoring Stations

AQI Forecast
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Air Quality Index Trend

46h · 8 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 1.0× the WHO 24-hour guideline of 15 µg/m³.

8.9%
Humidity
26.2 km/h
Wind W
1015.1 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
58
15.27 µg/m³
PM10
51
54.9 µg/m³
050100150200300500

What is the weather forecast for Rancho San Diego?

Temperature & Precipitation

PM2.5 Trend

46h · 8 stations
PM2.515.27 µg/m³ ✓ WHO
Moderate
PM1054.9 µg/m³
Moderate
UV INDEX0.0
Low
Station readings (10 stations within 25 km)
15.27
Median
14.06
Average
11.25
Low
24.9
High
PM2.5 µg/m³ · Model: 19.2 · Bias: +3.9

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

10-20
33.0° 23.8°
10-21
26.0° 20.4°
10-22
31.7° 20.6°
10-23
23.8° 21.1°
10-24
24.9° 18.4°
0.25 mm
10-25
29.9° 17.6°
10-26
28.4° 20.8°
0.13 mm
Both models agree Avg diff: 5.2°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
95
Otay Mesa - Donovan Correctional Facility, San Diego, California
18.7 km PM2.5: 33.0 µg/m³
55
Otay Mesa - Donovan Correctional Facility, San Diego, California
18.7 km PM2.5: 14.0 µg/m³
78
Otay Mesa - Donovan Correctional Facility, San Diego, California
18.7 km PM2.5: 24.9 µg/m³
50
Alpine-Victoria Drive, San Diego, California
18.9 km PM2.5: 12.0 µg/m³
45
Southwest Chula Vista
19.8 km PM2.5: 10.9 µg/m³
87
San Diego - Sherman Elementary School, San Diego, California
19.8 km PM2.5: 29.2 µg/m³
50
San Diego - Sherman Elementary School, San Diego, California
19.8 km PM2.5: 12.0 µg/m³
47
San Diego - Sherman Elementary School, San Diego, California
19.8 km PM2.5: 11.3 µg/m³
45
Ocean View Hills
21.2 km PM2.5: 10.7 µg/m³

What cities are near Rancho San Diego?

58 Casa de Oro-Mount Helix 59 El Cajon 56 Spring Valley 59 Bostonia 56 La Presa 55 La Mesa 54 Lemon Grove 58 Winter Gardens 56 Santee 57 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 2026-10-20T20:58 UTC.