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Today Hourly 7 days 30 days Air Quality
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Hourly Weather | Today › Tuesday, July 21, 2026
Active Weather Warnings
Nampa, Idaho
3 AM
Cloudy Weather
77°
Feels Like 73°
34
Humidity: 34%
UV Index: 0
Wind: 10 mph
4 AM
Cloudy Weather
77°
Feels Like 73°
34
Humidity: 36%
UV Index: 0
Wind: 9 mph
5 AM
Cloudy Weather
75°
Feels Like 73°
34
Humidity: 39%
UV Index: 0
Wind: 9 mph
6 AM
Cloudy Night
75°
Feels Like 72°
34
Humidity: 40%
UV Index: 0
Wind: 8 mph
7 AM
Cloudy Weather
73°
Feels Like 72°
22
Humidity: 41%
UV Index: 1
Wind: 8 mph
8 AM
Cloudy Weather
77°
Feels Like 75°
0
Humidity: 42%
UV Index: 1
Wind: 8 mph
9 AM
Cloudy Weather
81°
Feels Like 79°
0
Humidity: 36%
UV Index: 2
Wind: 8 mph
10 AM
Cloudy Weather
82°
Feels Like 84°
0
Humidity: 32%
UV Index: 4
Wind: 8 mph
11 AM
Cloudy Weather
86°
Feels Like 90°
0
Humidity: 29%
UV Index: 6
Wind: 8 mph
12 PM
Cloudy Weather
88°
Feels Like 93°
0
Humidity: 27%
UV Index: 9
Wind: 8 mph
1 PM
Cloudy Weather
91°
Feels Like 99°
0
Humidity: 25%
UV Index: 9
Wind: 8 mph
2 PM
Cloudy Weather
95°
Feels Like 99°
0
Humidity: 22%
UV Index: 8
Wind: 8 mph
3 PM
Cloudy Weather
97°
Feels Like 100°
0
Humidity: 21%
UV Index: 6
Wind: 9 mph
4 PM
Cloudy Weather
99°
Feels Like 100°
0
Humidity: 19%
UV Index: 4
Wind: 9 mph
5 PM
Cloudy Weather
100°
Feels Like 100°
0
Humidity: 18%
UV Index: 3
Wind: 9 mph
6 PM
Cloudy Weather
102°
Feels Like 100°
0
Humidity: 18%
UV Index: 2
Wind: 10 mph
7 PM
Cloudy Weather
100°
Feels Like 99°
0
Humidity: 19%
UV Index: 1
Wind: 9 mph
8 PM
Cloudy Weather
99°
Feels Like 95°
0
Humidity: 21%
UV Index: 0
Wind: 9 mph
9 PM
Cloudy Weather
95°
Feels Like 91°
0
Humidity: 23%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
91°
Feels Like 90°
0
Humidity: 28%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
90°
Feels Like 86°
0
Humidity: 32%
UV Index: 0
Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 AM
160 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 74.27 µg/m³
  • PM10: 75.27 µg/m³
  • O3: 0.076 ppm
  • NO2: 1.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.38 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

4 AM
161 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 75.44 µg/m³
  • PM10: 76.39 µg/m³
  • O3: 0.071 ppm
  • NO2: 1.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.38 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

5 AM
160 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 74.97 µg/m³
  • PM10: 75.9 µg/m³
  • O3: 0.066 ppm
  • NO2: 1.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.38 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

6 AM
160 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 74.3 µg/m³
  • PM10: 75.22 µg/m³
  • O3: 0.061 ppm
  • NO2: 1.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.38 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

7 AM
159 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 72.27 µg/m³
  • PM10: 73.2 µg/m³
  • O3: 0.056 ppm
  • NO2: 1.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.38 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

8 AM
158 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 70.82 µg/m³
  • PM10: 71.76 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.38 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

9 AM
157 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 69.49 µg/m³
  • PM10: 70.47 µg/m³
  • O3: 0.051 ppm
  • NO2: 1.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.38 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

10 AM
155 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 65.04 µg/m³
  • PM10: 66.13 µg/m³
  • O3: 0.058 ppm
  • NO2: 1.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.36 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

11 AM
155 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 64.08 µg/m³
  • PM10: 65.21 µg/m³
  • O3: 0.061 ppm
  • NO2: 1.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.35 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

12 PM
155 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 64.75 µg/m³
  • PM10: 65.92 µg/m³
  • O3: 0.064 ppm
  • NO2: 1.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.35 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

1 PM
141 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 51.92 µg/m³
  • PM10: 52.94 µg/m³
  • O3: 0.069 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.29 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

2 PM
119 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 42.95 µg/m³
  • PM10: 43.88 µg/m³
  • O3: 0.070 ppm
  • NO2: 0.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.25 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

3 PM
116 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 41.93 µg/m³
  • PM10: 42.77 µg/m³
  • O3: 0.071 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.25 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

4 PM
117 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 42.02 µg/m³
  • PM10: 42.77 µg/m³
  • O3: 0.073 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.25 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

5 PM
113 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 40.49 µg/m³
  • PM10: 41.18 µg/m³
  • O3: 0.073 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.24 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

6 PM
111 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 38.74 µg/m³
  • PM10: 39.42 µg/m³
  • O3: 0.073 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.23 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

7 PM
113 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 38.97 µg/m³
  • PM10: 39.65 µg/m³
  • O3: 0.074 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.23 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

8 PM
114 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 40.67 µg/m³
  • PM10: 41.37 µg/m³
  • O3: 0.074 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.24 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

9 PM
119 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 42.83 µg/m³
  • PM10: 43.55 µg/m³
  • O3: 0.074 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.24 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

10 PM
122 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 44.36 µg/m³
  • PM10: 45.1 µg/m³
  • O3: 0.072 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.25 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

11 PM
126 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 45.89 µg/m³
  • PM10: 46.66 µg/m³
  • O3: 0.069 ppm
  • NO2: 1.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.26 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Nampa

Air Quality Alert

Air Quality Alert issued July 20 at 8:21AM MDT by NWS Boise ID
Jul 20, 8:21 AM → Jul 21, 8:30 AM
WHAT: Air Quality Advisory because of degraded air quality.

Air Quality Index is forecast to be Unhealthy.

WHERE: Ada, Canyon, Gem, Payette, and Washington Counties.

WHEN: UNTIL 3 PM MDT WEDNESDAY.

IMPACTS: Everyone may begin to experience health effects; members
of sensitive groups may experience more serious health effects.
+ Read More
Air pollutants can cause breathing difficulties for children, the elderly, as well as persons with respiratory problems. Those individuals who are sensitive to increased particulate matter or smoke are encouraged to avoid prolonged or strenuous outdoor activity during this advisory. Open burning is prohibited by air quality rule. It is also recommended that all other individuals limit prolonged or strenuous activity outdoors. THIS STATEMENT IS ISSUED BY THE IDAHO DEPARTMENT OF ENVIRONMENTAL QUALITY, AIR QUALITY GROUP FOR MORE INFORMATION, CONTACT DEQ's Boise Regional Office at (208) 373-0550
Updated: Jul 21, 2:04 AM Source: NWS Alert

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