Today | Weather | Saturday, November 8, 2025

Weather in El Cajon, California

11:21 AM
Now
Sunny Weather
72° F
Feels Like 75°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 4
Humidity 56 %
Today
Cloudy Weather
Day 79°
Night 54°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 4

El Cajon Weather Forecast Updated

35 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 8, 2024)
Cloudy Night

Day

73°

Night

43°

Wind

4 mph

Precipitation

0 %

Air Quality in El Cajon

NOW
44 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 7.35 µg/m³
PM10 14.71 µg/m³
O3 0.047 ppm
NO2 0.3 ppb
SO2 0.3 ppb
CO 0.10 ppm
NH3 0 µg/m³
NO 0.11 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.57.35 µg/m³
PM1014.71 µg/m³
O392.78 µg/m³
NO20.62 µg/m³
SO20.84 µg/m³
CO115.6 µg/m³
NH30 µg/m³
NO0.11 µg/m³