Hourly Weather | Today Tuesday, July 21, 2026
Layton, Utah
3 AM
Cloudy Night
81°
Feels Like 77°
20
Humidity: 47%
UV Index: 0
Wind: 8 mph
4 AM
Cloudy Night
79°
Feels Like 75°
20
Humidity: 50%
UV Index: 0
Wind: 8 mph
5 AM
Cloudy Night
79°
Feels Like 75°
20
Humidity: 51%
UV Index: 0
Wind: 8 mph
6 AM
Cloudy Night
77°
Feels Like 75°
20
Humidity: 51%
UV Index: 0
Wind: 8 mph
7 AM
Cloudy Weather
79°
Feels Like 77°
16
Humidity: 50%
UV Index: 1
Wind: 9 mph
8 AM
Cloudy Weather
75°
Feels Like 75°
7
Humidity: 52%
UV Index: 2
Wind: 8 mph
9 AM
Cloudy Weather
81°
Feels Like 81°
7
Humidity: 46%
UV Index: 3
Wind: 8 mph
10 AM
Cloudy Weather
84°
Feels Like 88°
6
Humidity: 40%
UV Index: 4
Wind: 8 mph
11 AM
Cloudy Weather
88°
Feels Like 91°
5
Humidity: 34%
UV Index: 6
Wind: 8 mph
12 PM
Cloudy Weather
91°
Feels Like 97°
5
Humidity: 30%
UV Index: 9
Wind: 7 mph
1 PM
Cloudy Weather
93°
Feels Like 99°
8
Humidity: 28%
UV Index: 10
Wind: 7 mph
2 PM
Sunny with a Chance of Thunderstorms
93°
Feels Like 91°
51
Humidity: 30%
UV Index: 4
Wind: 7 mph
3 PM
Cloudy Weather
95°
Feels Like 99°
47
Humidity: 28%
UV Index: 6
Wind: 8 mph
4 PM
Cloudy Weather
97°
Feels Like 99°
35
Humidity: 25%
UV Index: 4
Wind: 7 mph
5 PM
Cloudy Weather
97°
Feels Like 97°
19
Humidity: 25%
UV Index: 3
Wind: 8 mph
6 PM
Cloudy Weather
93°
Feels Like 93°
19
Humidity: 26%
UV Index: 2
Wind: 7 mph
7 PM
Cloudy Weather
91°
Feels Like 91°
24
Humidity: 28%
UV Index: 1
Wind: 7 mph
8 PM
Cloudy Weather
90°
Feels Like 88°
34
Humidity: 32%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Weather
88°
Feels Like 84°
34
Humidity: 36%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
84°
Feels Like 82°
37
Humidity: 42%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
82°
Feels Like 81°
47
Humidity: 46%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 AM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.46 µg/m³
  • PM10: 6.05 µg/m³
  • O3: 0.033 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

4 AM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.44 µg/m³
  • PM10: 6.21 µg/m³
  • O3: 0.031 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

5 AM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.44 µg/m³
  • PM10: 6.38 µg/m³
  • O3: 0.029 ppm
  • NO2: 1.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

6 AM
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.43 µg/m³
  • PM10: 6.56 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

7 AM
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.4 µg/m³
  • PM10: 6.68 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

8 AM
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.36 µg/m³
  • PM10: 6.88 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.35 µg/m³
  • PM10: 7.31 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.28 µg/m³
  • PM10: 8.05 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.26 µg/m³
  • PM10: 7.46 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.43 µg/m³
  • PM10: 7.44 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.75 µg/m³
  • PM10: 7.03 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.2 ppb
  • SO2: 0.8 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.65 µg/m³
  • PM10: 6.14 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.2 ppb
  • SO2: 0.8 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

3 PM
46 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.48 µg/m³
  • PM10: 5.41 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.24 µg/m³
  • PM10: 4.79 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.3 ppb
  • SO2: 0.6 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.02 µg/m³
  • PM10: 4.37 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.87 µg/m³
  • PM10: 4.08 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.08 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: 2.63 µg/m³
  • PM10: 3.74 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.4 µg/m³
  • PM10: 3.55 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.24 µg/m³
  • PM10: 3.57 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.22 µg/m³
  • PM10: 3.89 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.32 µg/m³
  • PM10: 4.39 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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