Hourly Weather | Today Tuesday, September 1, 2026
Boise, Idaho
10 AM
Cloudy Weather
72°
Feels Like 73°
7
Humidity: 45%
UV Index: 4
Wind: 8 mph
11 AM
Cloudy Weather
75°
Feels Like 79°
7
Humidity: 39%
UV Index: 5
Wind: 10 mph
12 PM
Cloudy Weather
81°
Feels Like 82°
7
Humidity: 35%
UV Index: 6
Wind: 10 mph
1 PM
Cloudy Weather
82°
Feels Like 84°
6
Humidity: 33%
UV Index: 6
Wind: 10 mph
2 PM
Cloudy Weather
82°
Feels Like 84°
5
Humidity: 32%
UV Index: 6
Wind: 9 mph
3 PM
Cloudy Weather
82°
Feels Like 84°
5
Humidity: 30%
UV Index: 5
Wind: 9 mph
4 PM
Cloudy Weather
82°
Feels Like 84°
4
Humidity: 29%
UV Index: 4
Wind: 9 mph
5 PM
Cloudy Weather
82°
Feels Like 82°
3
Humidity: 27%
UV Index: 2
Wind: 9 mph
6 PM
Cloudy Weather
82°
Feels Like 81°
3
Humidity: 27%
UV Index: 1
Wind: 8 mph
7 PM
Cloudy Weather
81°
Feels Like 79°
2
Humidity: 29%
UV Index: 0
Wind: 8 mph
8 PM
Cloudy Weather
79°
Feels Like 75°
0
Humidity: 32%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
75°
Feels Like 73°
0
Humidity: 35%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
73°
Feels Like 72°
0
Humidity: 39%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
72°
Feels Like 70°
0
Humidity: 43%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 2.62 µg/m³
  • PM10: 3.74 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.94 µg/m³
  • PM10: 4.96 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.13 µg/m³
  • PM10: 6.02 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.3 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.3 µg/m³
  • PM10: 7.1 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.67 µg/m³
  • PM10: 7.53 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.55 µg/m³
  • PM10: 7.47 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

4 PM
55 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.18 µg/m³
  • PM10: 7.16 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

5 PM
55 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.83 µg/m³
  • PM10: 6.82 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

6 PM
54 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.04 µg/m³
  • PM10: 7.06 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.07 ppm

Health Recommendations:

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

7 PM
55 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.88 µg/m³
  • PM10: 8.01 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

8 PM
55 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.04 µg/m³
  • PM10: 9.37 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

9 PM
60 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.21 µg/m³
  • PM10: 10.78 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.3 ppb
  • SO2: 0 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.

10 PM
58 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.83 µg/m³
  • PM10: 11.53 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.3 ppb
  • SO2: 0 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.

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

Pollutant Concentrations:

  • PM2.5: 10.01 µg/m³
  • PM10: 11.78 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

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