Today | Weather | Monday, January 19, 2026

Weather in Santa Clarita, California

06:06 PM
Now
Night
68° F
Feels Like 64°
Precipitation 0 %
Wind 10 mph
Humidity 30 %
Today
Sunny Weather
Day 77°
Night 46°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 3

Santa Clarita Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (January 19, 2025)
Sunny Weather

Day

66°

Night

39°

Wind

4 mph

UV Index

3

Precipitation

0 %

Air Quality in Santa Clarita

NOW
125 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 45.4 µg/m³
PM10 56.42 µg/m³
O3 0.052 ppm
NO2 7.4 ppb
SO2 0.8 ppb
CO 0.31 ppm
NH3 0.18 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:

Members of sensitive groups may experience health effects. The general public is not likely to be affected.

Show raw pollutant concentrations (µg/m³)
PM2.545.4 µg/m³
PM1056.42 µg/m³
O3102.35 µg/m³
NO213.95 µg/m³
SO22.22 µg/m³
CO352.63 µg/m³
NH30.18 µg/m³
NO0 µg/m³