Today | Weather | Monday, October 5, 2026
Active Weather Warnings

Weather in Santa Clarita, California

09:15 AM
Now
Sunny Weather
81° F
Feels Like 81°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 2
Humidity 33 %
Today
Hot Day
Day 104°
Night 66°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 5

Santa Clarita Weather Forecast Updated

6 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 5, 2025)
Night

Day

82°

Night

54°

Wind

5 mph

Precipitation

0 %

Air Quality in Santa Clarita

NOW
67 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 19.95 µg/m³
PM10 32.92 µg/m³
O3 0.043 ppm
NO2 1.1 ppb
SO2 0.2 ppb
CO 0.14 ppm
NH3 0.01 µg/m³
NO 0.19 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 – 19.95 µg/m³
PM10 – 32.92 µg/m³
O3 – 85 µg/m³
NO2 – 2.09 µg/m³
SO2 – 0.65 µg/m³
CO – 157.94 µg/m³
NH3 – 0.01 µg/m³
NO – 0.19 µg/m³

Weather Alerts and Warnings for Santa Clarita

Severe Future Likely

Extreme Heat Watch

Extreme Heat Watch issued September 30 at 9:46AM PDT until October 8 at 8:00PM PDT by NWS Los Angeles/Oxnard CA
Oct 2, 10:00 AM → Oct 8, 8:00 PM
WHAT: Dangerously hot conditions with temperatures up to 90 at the
coast and 105 in the valleys.

WHERE: Coast and valleys of Los Angeles and Ventura Counties.

WHEN: From Friday morning through Thursday, October 08.

IMPACTS: Heat related illnesses increase significantly during
extreme heat events.

ADDITIONAL DETAILS: Very hot temperatures are likely to continue
into the second week of October, possibly requiring an extension of
this product.
+ Read More
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Updated: Oct 1, 11:28 AM Source: NWS Alert
Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued October 4 at 11:04AM PDT until October 8 at 8:00PM PDT by NWS Los Angeles/Oxnard CA
Oct 4, 11:04 AM → Oct 8, 8:00 PM
WHAT: Dangerously hot conditions with temperatures reaching 90 to
100 at the coast and 106 in the valleys.

WHERE: Coast and valleys of Los Angeles and Ventura Counties.

WHEN: Until 8 PM PDT Thursday.

IMPACTS: Heat related illnesses increase significantly during
extreme heat events.
+ Read More
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Updated: Oct 5, 9:08 AM Source: NWS Alert