Hourly Weather | Today Wednesday, March 18, 2026
Idaho Falls, Idaho
9 AM
Cloudy Weather
41°
Feels Like 37°
0
Humidity: 59%
UV Index: 2
Wind: 8 mph
10 AM
Cloudy Weather
46°
Feels Like 45°
0
Humidity: 55%
UV Index: 3
Wind: 10 mph
11 AM
Cloudy Weather
52°
Feels Like 50°
0
Humidity: 46%
UV Index: 4
Wind: 13 mph
12 PM
Cloudy Weather
59°
Feels Like 57°
0
Humidity: 36%
UV Index: 5
Wind: 16 mph
1 PM
Cloudy Weather
66°
Feels Like 66°
0
Humidity: 26%
UV Index: 5
Wind: 18 mph
2 PM
Cloudy Weather
72°
Feels Like 72°
0
Humidity: 21%
UV Index: 5
Wind: 20 mph
3 PM
Cloudy Weather
75°
Feels Like 73°
0
Humidity: 17%
UV Index: 4
Wind: 22 mph
4 PM
Cloudy Weather
79°
Feels Like 75°
0
Humidity: 15%
UV Index: 3
Wind: 23 mph
5 PM
Cloudy Weather
75°
Feels Like 73°
0
Humidity: 16%
UV Index: 2
Wind: 22 mph
6 PM
Cloudy Weather
73°
Feels Like 72°
0
Humidity: 16%
UV Index: 1
Wind: 20 mph
7 PM
Cloudy Weather
72°
Feels Like 66°
0
Humidity: 19%
UV Index: 0
Wind: 17 mph
8 PM
Cloudy Night
66°
Feels Like 63°
0
Humidity: 23%
UV Index: 0
Wind: 17 mph
9 PM
Cloudy Night
63°
Feels Like 57°
0
Humidity: 29%
UV Index: 0
Wind: 16 mph
10 PM
Cloudy Night
59°
Feels Like 54°
0
Humidity: 34%
UV Index: 0
Wind: 15 mph
11 PM
Cloudy Night
55°
Feels Like 48°
0
Humidity: 38%
UV Index: 0
Wind: 15 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 2.48 µg/m³
  • PM10: 5.88 µg/m³
  • O3: 0.023 ppm
  • NO2: 2.1 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.65 µg/m³
  • PM10: 6.82 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.8 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.68 µg/m³
  • PM10: 7.58 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.5 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.9 µg/m³
  • PM10: 8.75 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.3 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: 2.55 µg/m³
  • PM10: 9.79 µg/m³
  • O3: 0.042 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.

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

Pollutant Concentrations:

  • PM2.5: 2.46 µg/m³
  • PM10: 9.21 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.36 µg/m³
  • PM10: 8.68 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.76 µg/m³
  • PM10: 6.17 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.43 µg/m³
  • PM10: 4.76 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.28 µg/m³
  • PM10: 4.15 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.52 µg/m³
  • PM10: 4.59 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.7 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 PM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.95 µg/m³
  • PM10: 5.48 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.5 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.28 µg/m³
  • PM10: 6.26 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.8 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
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.51 µg/m³
  • PM10: 6.83 µg/m³
  • O3: 0.031 ppm
  • NO2: 1.9 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.68 µg/m³
  • PM10: 7.28 µg/m³
  • O3: 0.030 ppm
  • NO2: 1.9 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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