Today | Weather | Sunday, October 25, 2026

Weather in Santa Clarita, California

04:28 PM
Now
Cloudy Weather
81° F
Feels Like 81°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 2
Humidity 31 %
Today
Sunny Weather
Day 82°
Night 52°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 4

Santa Clarita Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 25, 2025)
Cloudy Night

Day

77°

Night

48°

Wind

5 mph

Precipitation

0 %

Air Quality in Santa Clarita

NOW
69 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 12.12 µg/m³
PM10 20.13 µg/m³
O3 0.060 ppm
NO2 0.4 ppb
SO2 0.4 ppb
CO 0.14 ppm
NH3 0.02 µg/m³
NO 0.06 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.5 – 12.12 µg/m³
PM10 – 20.13 µg/m³
O3 – 118.09 µg/m³
NO2 – 0.72 µg/m³
SO2 – 0.98 µg/m³
CO – 163.48 µg/m³
NH3 – 0.02 µg/m³
NO – 0.06 µg/m³