Today | Weather | Thursday, November 6, 2025

Weather in Santa Ana, California

12:52 PM
Now
Cloudy Weather
75° F
Feels Like 77°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 3
Humidity 52 %
Today
Sunny Weather
Day 75°
Night 55°
Precipitation 1 %
Wind 5 mph
UV Index (0 - 11+) 4

Santa Ana Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 6, 2024)
Windy Weather

Day

75°

Night

54°

Wind

12 mph

Precipitation

0 %

Air Quality in Santa Ana

NOW
34 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.44 µg/m³
PM10 6.95 µg/m³
O3 0.037 ppm
NO2 0.1 ppb
SO2 0.1 ppb
CO 0.08 ppm
NH3 0 µg/m³
NO 0.05 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)
PM2.52.44 µg/m³
PM106.95 µg/m³
O372.83 µg/m³
NO20.24 µg/m³
SO20.3 µg/m³
CO90.46 µg/m³
NH30 µg/m³
NO0.05 µg/m³