Hourly Weather | Today Tuesday, July 21, 2026
Idaho Falls, Idaho
3 AM
Cloudy Night
66°
Feels Like 63°
40
Humidity: 64%
UV Index: 0
Wind: 7 mph
4 AM
Cloudy Night
64°
Feels Like 63°
29
Humidity: 67%
UV Index: 0
Wind: 6 mph
5 AM
Cloudy Night
63°
Feels Like 63°
17
Humidity: 71%
UV Index: 0
Wind: 6 mph
6 AM
Cloudy Night
63°
Feels Like 61°
17
Humidity: 73%
UV Index: 0
Wind: 6 mph
7 AM
Cloudy Weather
64°
Feels Like 66°
14
Humidity: 68%
UV Index: 1
Wind: 6 mph
8 AM
Cloudy Weather
70°
Feels Like 70°
7
Humidity: 60%
UV Index: 2
Wind: 6 mph
9 AM
Cloudy Weather
73°
Feels Like 75°
7
Humidity: 53%
UV Index: 3
Wind: 6 mph
10 AM
Cloudy Weather
79°
Feels Like 82°
7
Humidity: 45%
UV Index: 5
Wind: 7 mph
11 AM
Cloudy Weather
82°
Feels Like 88°
7
Humidity: 38%
UV Index: 6
Wind: 7 mph
12 PM
Cloudy Weather
88°
Feels Like 93°
7
Humidity: 32%
UV Index: 9
Wind: 8 mph
1 PM
Cloudy Weather
90°
Feels Like 97°
11
Humidity: 28%
UV Index: 10
Wind: 8 mph
2 PM
Cloudy Weather
93°
Feels Like 99°
19
Humidity: 25%
UV Index: 9
Wind: 8 mph
3 PM
Cloudy Weather
95°
Feels Like 99°
19
Humidity: 22%
UV Index: 7
Wind: 8 mph
4 PM
Cloudy Weather
97°
Feels Like 99°
24
Humidity: 21%
UV Index: 4
Wind: 9 mph
5 PM
Cloudy Weather
95°
Feels Like 95°
43
Humidity: 22%
UV Index: 3
Wind: 10 mph
6 PM
Cloudy Weather
93°
Feels Like 91°
47
Humidity: 24%
UV Index: 2
Wind: 12 mph
7 PM
Sunny with a Chance of Thunderstorms
90°
Feels Like 82°
51
Humidity: 31%
UV Index: 1
Wind: 13 mph
8 PM
Stormy Weather
84°
Feels Like 79°
51
Humidity: 37%
UV Index: 0
Wind: 12 mph
9 PM
Cloudy Weather
82°
Feels Like 79°
47
Humidity: 44%
UV Index: 0
Wind: 12 mph
10 PM
Cloudy Weather
79°
Feels Like 75°
40
Humidity: 51%
UV Index: 0
Wind: 10 mph
11 PM
Cloudy Night
75°
Feels Like 73°
33
Humidity: 58%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.23 µg/m³
  • PM10: 4.45 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.17 µg/m³
  • PM10: 4.36 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.6 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.35 µg/m³
  • PM10: 4.53 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.6 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.77 µg/m³
  • PM10: 4.95 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.7 ppb
  • SO2: 0 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: 4.47 µg/m³
  • PM10: 5.69 µg/m³
  • O3: 0.026 ppm
  • NO2: 2 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.72 µg/m³
  • PM10: 7.02 µg/m³
  • O3: 0.026 ppm
  • NO2: 2.3 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

9 AM
32 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.79 µg/m³
  • PM10: 9.24 µg/m³
  • O3: 0.031 ppm
  • NO2: 2 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

10 AM
47 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.32 µg/m³
  • PM10: 13.09 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.8 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
59 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 11.91 µg/m³
  • PM10: 13.63 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

12 PM
69 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 11.91 µg/m³
  • PM10: 13.55 µg/m³
  • O3: 0.060 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.52 µg/m³
  • PM10: 11.07 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 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.

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

Pollutant Concentrations:

  • PM2.5: 6.88 µg/m³
  • PM10: 8.33 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.57 µg/m³
  • PM10: 6.98 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.97 µg/m³
  • PM10: 6.33 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.56 µg/m³
  • PM10: 5.82 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.1 µg/m³
  • PM10: 5.23 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.5 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 PM
46 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.65 µg/m³
  • PM10: 4.7 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.41 µg/m³
  • PM10: 4.45 µg/m³
  • O3: 0.047 ppm
  • NO2: 1 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 PM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.19 µg/m³
  • PM10: 4.22 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.1 µg/m³
  • PM10: 4.02 µg/m³
  • O3: 0.041 ppm
  • NO2: 1.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.13 µg/m³
  • PM10: 3.93 µg/m³
  • O3: 0.038 ppm
  • NO2: 1.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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