Hourly Weather | Today Friday, July 17, 2026
Roseville, California
3 PM
Cloudy Weather
91°
Feels Like 97°
0
Humidity: 20%
UV Index: 7
Wind: 7 mph
4 PM
Cloudy Weather
93°
Feels Like 97°
0
Humidity: 16%
UV Index: 5
Wind: 8 mph
5 PM
Cloudy Weather
93°
Feels Like 93°
0
Humidity: 15%
UV Index: 3
Wind: 8 mph
6 PM
Cloudy Weather
91°
Feels Like 90°
0
Humidity: 16%
UV Index: 2
Wind: 8 mph
7 PM
Cloudy Weather
90°
Feels Like 88°
0
Humidity: 19%
UV Index: 1
Wind: 8 mph
8 PM
Cloudy Weather
90°
Feels Like 88°
0
Humidity: 19%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
82°
Feels Like 81°
0
Humidity: 27%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
79°
Feels Like 75°
0
Humidity: 34%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
75°
Feels Like 72°
0
Humidity: 41%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 6.85 µg/m³
  • PM10: 11.76 µg/m³
  • O3: 0.057 ppm
  • NO2: 1.5 ppb
  • SO2: 0.9 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.35 µg/m³
  • PM10: 11.26 µg/m³
  • O3: 0.057 ppm
  • NO2: 1.6 ppb
  • SO2: 0.9 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.79 µg/m³
  • PM10: 10.71 µg/m³
  • O3: 0.055 ppm
  • NO2: 1.9 ppb
  • SO2: 0.9 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.5 µg/m³
  • PM10: 10.7 µg/m³
  • O3: 0.052 ppm
  • NO2: 2.8 ppb
  • SO2: 1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

7 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.29 µg/m³
  • PM10: 10.97 µg/m³
  • O3: 0.048 ppm
  • NO2: 4 ppb
  • SO2: 1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

8 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.77 µg/m³
  • PM10: 10.67 µg/m³
  • O3: 0.043 ppm
  • NO2: 5.3 ppb
  • SO2: 1.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

9 PM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.41 µg/m³
  • PM10: 10.33 µg/m³
  • O3: 0.038 ppm
  • NO2: 6.1 ppb
  • SO2: 1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

10 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.34 µg/m³
  • PM10: 10.38 µg/m³
  • O3: 0.035 ppm
  • NO2: 6.4 ppb
  • SO2: 1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.31 µg/m³
  • PM10: 10.41 µg/m³
  • O3: 0.033 ppm
  • NO2: 6.5 ppb
  • SO2: 0.9 ppb
  • CO: 0.12 ppm

Health Recommendations:

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