Hourly Weather | Today Thursday, February 26, 2026
Roseville, California
2 AM
Cloudy Night
54°
Feels Like 52°
1
Humidity: 97%
UV Index: 0
Wind: 6 mph
3 AM
Cloudy Night
54°
Feels Like 52°
1
Humidity: 98%
UV Index: 0
Wind: 6 mph
4 AM
Cloudy Night
52°
Feels Like 50°
1
Humidity: 99%
UV Index: 0
Wind: 6 mph
5 AM
Cloudy Night
52°
Feels Like 48°
1
Humidity: 99%
UV Index: 0
Wind: 6 mph
6 AM
Cloudy Night
50°
Feels Like 48°
1
Humidity: 100%
UV Index: 0
Wind: 6 mph
7 AM
Cloudy Weather
52°
Feels Like 52°
0
Humidity: 100%
UV Index: 1
Wind: 6 mph
8 AM
Cloudy Weather
54°
Feels Like 54°
0
Humidity: 98%
UV Index: 1
Wind: 6 mph
9 AM
Cloudy Weather
55°
Feels Like 59°
0
Humidity: 92%
UV Index: 2
Wind: 6 mph
10 AM
Cloudy Weather
61°
Feels Like 63°
0
Humidity: 86%
UV Index: 3
Wind: 7 mph
11 AM
Cloudy Weather
63°
Feels Like 66°
0
Humidity: 79%
UV Index: 4
Wind: 7 mph
12 PM
Cloudy Weather
66°
Feels Like 70°
0
Humidity: 74%
UV Index: 4
Wind: 8 mph
1 PM
Cloudy Weather
68°
Feels Like 70°
0
Humidity: 70%
UV Index: 4
Wind: 9 mph
2 PM
Cloudy Weather
70°
Feels Like 70°
0
Humidity: 67%
UV Index: 3
Wind: 9 mph
3 PM
Cloudy Weather
70°
Feels Like 72°
0
Humidity: 65%
UV Index: 2
Wind: 9 mph
4 PM
Cloudy Weather
70°
Feels Like 68°
0
Humidity: 68%
UV Index: 1
Wind: 8 mph
5 PM
Cloudy Weather
66°
Feels Like 64°
0
Humidity: 71%
UV Index: 1
Wind: 8 mph
6 PM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 79%
UV Index: 0
Wind: 7 mph
7 PM
Cloudy Night
63°
Feels Like 61°
0
Humidity: 83%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Night
59°
Feels Like 57°
0
Humidity: 89%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
57°
Feels Like 55°
0
Humidity: 94%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
55°
Feels Like 54°
0
Humidity: 95%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
55°
Feels Like 54°
0
Humidity: 97%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

2 AM
56 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.61 µg/m³
  • PM10: 19.66 µg/m³
  • O3: 0.001 ppm
  • NO2: 17.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.34 ppm

Health Recommendations:

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

3 AM
56 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.66 µg/m³
  • PM10: 19.52 µg/m³
  • O3: 0.001 ppm
  • NO2: 16.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.34 ppm

Health Recommendations:

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

4 AM
56 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.02 µg/m³
  • PM10: 19.84 µg/m³
  • O3: 0.001 ppm
  • NO2: 16.4 ppb
  • SO2: 0.7 ppb
  • CO: 0.34 ppm

Health Recommendations:

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

5 AM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.64 µg/m³
  • PM10: 20.35 µg/m³
  • O3: 0.001 ppm
  • NO2: 16.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.34 ppm

Health Recommendations:

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

6 AM
60 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.5 µg/m³
  • PM10: 21.16 µg/m³
  • O3: 0.001 ppm
  • NO2: 17.2 ppb
  • SO2: 0.9 ppb
  • CO: 0.34 ppm

Health Recommendations:

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

7 AM
63 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.14 µg/m³
  • PM10: 23.31 µg/m³
  • O3: 0.001 ppm
  • NO2: 17.7 ppb
  • SO2: 1 ppb
  • CO: 0.36 ppm

Health Recommendations:

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

8 AM
67 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 19.85 µg/m³
  • PM10: 25.95 µg/m³
  • O3: 0.001 ppm
  • NO2: 17.3 ppb
  • SO2: 1 ppb
  • CO: 0.39 ppm

Health Recommendations:

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

9 AM
68 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 20.42 µg/m³
  • PM10: 27.52 µg/m³
  • O3: 0.003 ppm
  • NO2: 14.5 ppb
  • SO2: 0.9 ppb
  • CO: 0.42 ppm

Health Recommendations:

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

10 AM
67 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 19.82 µg/m³
  • PM10: 27.51 µg/m³
  • O3: 0.005 ppm
  • NO2: 12.8 ppb
  • SO2: 0.9 ppb
  • CO: 0.42 ppm

Health Recommendations:

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

11 AM
56 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.97 µg/m³
  • PM10: 21.04 µg/m³
  • O3: 0.015 ppm
  • NO2: 12 ppb
  • SO2: 1.5 ppb
  • CO: 0.31 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 16 µg/m³
  • PM10: 21.72 µg/m³
  • O3: 0.024 ppm
  • NO2: 11.6 ppb
  • SO2: 1.6 ppb
  • CO: 0.27 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 19 µg/m³
  • PM10: 24.49 µg/m³
  • O3: 0.032 ppm
  • NO2: 10.9 ppb
  • SO2: 1.7 ppb
  • CO: 0.26 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 21.1 µg/m³
  • PM10: 26.16 µg/m³
  • O3: 0.043 ppm
  • NO2: 9.2 ppb
  • SO2: 1.5 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 22.83 µg/m³
  • PM10: 27.72 µg/m³
  • O3: 0.048 ppm
  • NO2: 8.7 ppb
  • SO2: 1.3 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 23.78 µg/m³
  • PM10: 28.71 µg/m³
  • O3: 0.049 ppm
  • NO2: 9.2 ppb
  • SO2: 1.2 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 24.2 µg/m³
  • PM10: 29.5 µg/m³
  • O3: 0.043 ppm
  • NO2: 12.1 ppb
  • SO2: 1.1 ppb
  • CO: 0.25 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 24.63 µg/m³
  • PM10: 30.61 µg/m³
  • O3: 0.032 ppm
  • NO2: 17.5 ppb
  • SO2: 0.9 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 25.24 µg/m³
  • PM10: 32.16 µg/m³
  • O3: 0.024 ppm
  • NO2: 21.7 ppb
  • SO2: 0.9 ppb
  • CO: 0.32 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 26.4 µg/m³
  • PM10: 34.3 µg/m³
  • O3: 0.018 ppm
  • NO2: 24.9 ppb
  • SO2: 0.9 ppb
  • CO: 0.34 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 27.54 µg/m³
  • PM10: 36.37 µg/m³
  • O3: 0.014 ppm
  • NO2: 27.3 ppb
  • SO2: 0.9 ppb
  • CO: 0.37 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 28.28 µg/m³
  • PM10: 37.83 µg/m³
  • O3: 0.012 ppm
  • NO2: 28.8 ppb
  • SO2: 1 ppb
  • CO: 0.38 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 28.55 µg/m³
  • PM10: 38.38 µg/m³
  • O3: 0.010 ppm
  • NO2: 29.9 ppb
  • SO2: 1 ppb
  • CO: 0.39 ppm

Health Recommendations:

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