Today | Weather | Friday, August 14, 2026

Weather in Santa Ana, California

02:59 PM
Now
Cloudy Weather
82° F
Feels Like 88°
Precipitation 0 %
Wind 9 mph
UV Index (0 - 11+) 7
Humidity 54 %
Today
Cloudy Weather
Day 84°
Night 66°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Santa Ana Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 14, 2025)
Cloudy Night

Day

79°

Night

63°

Wind

6 mph

Precipitation

0 %

Air Quality in Santa Ana

NOW
29 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.58 µg/m³
PM10 3.93 µg/m³
O3 0.031 ppm
NO2 0.1 ppb
SO2 0.1 ppb
CO 0.07 ppm
NH3 0 µg/m³
NO 0.04 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)
PM2.51.58 µg/m³
PM103.93 µg/m³
O360.58 µg/m³
NO20.14 µg/m³
SO20.22 µg/m³
CO76.62 µg/m³
NH30 µg/m³
NO0.04 µg/m³