Hourly Weather | Today Friday, January 9, 2026
Tempe, Arizona
10 AM
Cloudy Weather
46°
Feels Like 50°
0
Humidity: 64%
Wind: 6 mph
UV Index: 2
11 AM
Cloudy Weather
48°
Feels Like 54°
0
Humidity: 55%
Wind: 6 mph
UV Index: 3
12 PM
Sunny Weather
54°
Feels Like 57°
0
Humidity: 47%
Wind: 6 mph
UV Index: 3
1 PM
Sunny Weather
55°
Feels Like 61°
0
Humidity: 39%
Wind: 5 mph
UV Index: 3
2 PM
Sunny Weather
57°
Feels Like 61°
0
Humidity: 34%
Wind: 6 mph
UV Index: 2
3 PM
Sunny Weather
57°
Feels Like 61°
0
Humidity: 31%
Wind: 6 mph
UV Index: 2
4 PM
Sunny Weather
59°
Feels Like 59°
0
Humidity: 27%
Wind: 6 mph
UV Index: 1
5 PM
Cloudy Weather
57°
Feels Like 55°
0
Humidity: 28%
Wind: 6 mph
UV Index: 0
6 PM
Night
54°
Feels Like 52°
0
Humidity: 31%
Wind: 6 mph
UV Index: 0
7 PM
Night
52°
Feels Like 48°
0
Humidity: 35%
Wind: 7 mph
UV Index: 0
8 PM
Night
48°
Feels Like 45°
0
Humidity: 38%
Wind: 7 mph
UV Index: 0
9 PM
Night
46°
Feels Like 43°
0
Humidity: 41%
Wind: 7 mph
UV Index: 0
10 PM
Night
45°
Feels Like 41°
0
Humidity: 45%
Wind: 7 mph
UV Index: 0
11 PM
Night
43°
Feels Like 39°
0
Humidity: 47%
Wind: 7 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

10 AM
43 AQI
Good air quality Dominant pollutant: PM10
Details

Pollutant Concentrations:

  • PM2.5: 8.4 µg/m³
  • PM10: 46.81 µg/m³
  • O3: 0.040 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.76 µg/m³
  • PM10: 38.19 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.61 µg/m³
  • PM10: 26.41 µg/m³
  • O3: 0.042 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.95 µg/m³
  • PM10: 21.2 µg/m³
  • O3: 0.042 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4 µg/m³
  • PM10: 18.75 µg/m³
  • O3: 0.043 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.08 µg/m³
  • PM10: 15.49 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.38 µg/m³
  • PM10: 13.8 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.95 µg/m³
  • PM10: 14.19 µg/m³
  • O3: 0.047 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.6 µg/m³
  • PM10: 15.58 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.28 µg/m³
  • PM10: 17.55 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.66 µg/m³
  • PM10: 18.96 µg/m³
  • O3: 0.043 ppm
  • NO2: 2.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.56 µg/m³
  • PM10: 19.31 µg/m³
  • O3: 0.041 ppm
  • NO2: 2.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.18 µg/m³
  • PM10: 18.89 µg/m³
  • O3: 0.039 ppm
  • NO2: 3 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.55 µg/m³
  • PM10: 17.64 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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