Hourly Weather | Today Thursday, December 11, 2025
Santa Clarita, California
12 PM
Sunny Weather
82°
Feels Like 82°
0
Humidity: 21%
Wind: 8 mph
UV Index: 3
1 PM
Sunny Weather
82°
Feels Like 84°
0
Humidity: 20%
Wind: 8 mph
UV Index: 3
2 PM
Sunny Weather
84°
Feels Like 84°
0
Humidity: 19%
Wind: 7 mph
UV Index: 2
3 PM
Sunny Weather
82°
Feels Like 82°
0
Humidity: 22%
Wind: 7 mph
UV Index: 2
4 PM
Sunny Weather
79°
Feels Like 77°
0
Humidity: 26%
Wind: 6 mph
UV Index: 1
5 PM
Night
73°
Feels Like 72°
0
Humidity: 31%
Wind: 6 mph
UV Index: 0
6 PM
Night
70°
Feels Like 66°
0
Humidity: 35%
Wind: 6 mph
UV Index: 0
7 PM
Night
66°
Feels Like 64°
0
Humidity: 39%
Wind: 6 mph
UV Index: 0
8 PM
Night
63°
Feels Like 63°
0
Humidity: 44%
Wind: 6 mph
UV Index: 0
9 PM
Night
61°
Feels Like 59°
0
Humidity: 48%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy Night
59°
Feels Like 57°
0
Humidity: 51%
Wind: 6 mph
UV Index: 0
11 PM
Cloudy Night
57°
Feels Like 55°
0
Humidity: 52%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

12 PM
70 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 21.5 µg/m³
  • PM10: 28.01 µg/m³
  • O3: 0.033 ppm
  • NO2: 3.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.22 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

1 PM
73 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 22.64 µg/m³
  • PM10: 29.16 µg/m³
  • O3: 0.036 ppm
  • NO2: 3.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.22 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

2 PM
74 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 23.09 µg/m³
  • PM10: 29.7 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.21 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

3 PM
72 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 22.13 µg/m³
  • PM10: 28.62 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM
68 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 20.59 µg/m³
  • PM10: 26.89 µg/m³
  • O3: 0.039 ppm
  • NO2: 2.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
65 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 19.23 µg/m³
  • PM10: 25.36 µg/m³
  • O3: 0.038 ppm
  • NO2: 2.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
63 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.31 µg/m³
  • PM10: 24.32 µg/m³
  • O3: 0.037 ppm
  • NO2: 2 ppb
  • SO2: 0.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 PM
62 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 17.64 µg/m³
  • PM10: 23.57 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 PM
61 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 17.2 µg/m³
  • PM10: 23.09 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 PM
61 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.97 µg/m³
  • PM10: 22.82 µg/m³
  • O3: 0.033 ppm
  • NO2: 2 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 PM
60 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.83 µg/m³
  • PM10: 22.62 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 PM
60 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.71 µg/m³
  • PM10: 22.44 µg/m³
  • O3: 0.030 ppm
  • NO2: 2.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.