Today | Weather | Wednesday, November 5, 2025

Weather in Chula Vista, California

06:23 AM
Now
Cloudy Weather
55° F
Feels Like 55°
Precipitation 0 %
Wind 5 mph
Humidity 93 %
Today
Cloudy Weather
Day 70°
Night 55°
Precipitation 1 %
Wind 7 mph
UV Index (0 - 11+) 4

Chula Vista Weather Forecast Updated

27 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 5, 2024)
Cloudy Night

Day

72°

Night

48°

Wind

2 mph

Precipitation

0 %

Air Quality in Chula Vista

NOW
39 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.47 µg/m³
PM10 4.24 µg/m³
O3 0.042 ppm
NO2 0.1 ppb
SO2 0 ppb
CO 0.08 ppm
NH3 0 µg/m³
NO 0 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)
PM2.51.47 µg/m³
PM104.24 µg/m³
O383.34 µg/m³
NO20.16 µg/m³
SO20.13 µg/m³
CO89.75 µg/m³
NH30 µg/m³
NO0 µg/m³