Hourly Weather | Today Tuesday, April 7, 2026
Simi Valley, California
9 AM
Cloudy Weather
57°
Feels Like 63°
0
Humidity: 71%
UV Index: 2
Wind: 5 mph
10 AM
Cloudy Weather
64°
Feels Like 70°
0
Humidity: 60%
UV Index: 4
Wind: 6 mph
11 AM
Cloudy Weather
70°
Feels Like 75°
0
Humidity: 49%
UV Index: 5
Wind: 7 mph
12 PM
Cloudy Weather
75°
Feels Like 82°
0
Humidity: 41%
UV Index: 7
Wind: 7 mph
1 PM
Cloudy Weather
77°
Feels Like 84°
0
Humidity: 39%
UV Index: 8
Wind: 8 mph
2 PM
Cloudy Weather
79°
Feels Like 84°
0
Humidity: 39%
UV Index: 7
Wind: 9 mph
3 PM
Cloudy Weather
79°
Feels Like 82°
0
Humidity: 38%
UV Index: 5
Wind: 9 mph
4 PM
Cloudy Weather
79°
Feels Like 81°
0
Humidity: 40%
UV Index: 4
Wind: 9 mph
5 PM
Cloudy Weather
77°
Feels Like 77°
0
Humidity: 42%
UV Index: 2
Wind: 8 mph
6 PM
Cloudy Weather
75°
Feels Like 73°
0
Humidity: 44%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Weather
72°
Feels Like 70°
0
Humidity: 50%
UV Index: 0
Wind: 6 mph
8 PM
Night
68°
Feels Like 66°
0
Humidity: 56%
UV Index: 0
Wind: 5 mph
9 PM
Night
64°
Feels Like 63°
0
Humidity: 60%
UV Index: 0
Wind: 5 mph
10 PM
Night
63°
Feels Like 63°
0
Humidity: 60%
UV Index: 0
Wind: 6 mph
11 PM
Night
63°
Feels Like 61°
0
Humidity: 59%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.61 µg/m³
  • PM10: 19.03 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 AM
46 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.84 µg/m³
  • PM10: 19.34 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 AM
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.1 µg/m³
  • PM10: 19.73 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

12 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.27 µg/m³
  • PM10: 20.02 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

1 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.35 µg/m³
  • PM10: 20.31 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

2 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.36 µg/m³
  • PM10: 20.49 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 PM
52 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.13 µg/m³
  • PM10: 20.2 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

4 PM
54 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.55 µg/m³
  • PM10: 19.02 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

5 PM
56 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.86 µg/m³
  • PM10: 17.42 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

6 PM
57 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.32 µg/m³
  • PM10: 15.98 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

7 PM
56 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.95 µg/m³
  • PM10: 14.85 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

8 PM
55 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.84 µg/m³
  • PM10: 14.26 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

9 PM
53 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5 µg/m³
  • PM10: 14.37 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

10 PM
51 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.28 µg/m³
  • PM10: 15.04 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

11 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.51 µg/m³
  • PM10: 15.93 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.