Hourly Weather | Today Monday, January 19, 2026
Hesperia, California
1 AM
Cloudy Night
45°
Feels Like 43°
0
Humidity: 46%
Wind: 5 mph
UV Index: 0
2 AM
Cloudy Night
43°
Feels Like 41°
0
Humidity: 49%
Wind: 5 mph
UV Index: 0
3 AM
Cloudy Night
41°
Feels Like 39°
0
Humidity: 54%
Wind: 5 mph
UV Index: 0
4 AM
Cloudy Night
39°
Feels Like 37°
0
Humidity: 57%
Wind: 5 mph
UV Index: 0
5 AM
Cloudy Night
37°
Feels Like 36°
0
Humidity: 60%
Wind: 5 mph
UV Index: 0
6 AM
Cloudy Night
36°
Feels Like 34°
0
Humidity: 62%
Wind: 5 mph
UV Index: 0
7 AM
Cloudy Weather
39°
Feels Like 37°
0
Humidity: 58%
Wind: 5 mph
UV Index: 0
8 AM
Cloudy Weather
43°
Feels Like 45°
0
Humidity: 50%
Wind: 5 mph
UV Index: 1
9 AM
Cloudy Weather
50°
Feels Like 54°
0
Humidity: 40%
Wind: 5 mph
UV Index: 2
10 AM
Cloudy Weather
55°
Feels Like 61°
0
Humidity: 33%
Wind: 6 mph
UV Index: 3
11 AM
Cloudy Weather
61°
Feels Like 64°
0
Humidity: 28%
Wind: 6 mph
UV Index: 3
12 PM
Cloudy Weather
64°
Feels Like 66°
0
Humidity: 24%
Wind: 7 mph
UV Index: 3
1 PM
Cloudy Weather
66°
Feels Like 66°
0
Humidity: 22%
Wind: 8 mph
UV Index: 3
2 PM
Cloudy Weather
66°
Feels Like 68°
0
Humidity: 21%
Wind: 8 mph
UV Index: 3
3 PM
Cloudy Weather
68°
Feels Like 68°
0
Humidity: 20%
Wind: 8 mph
UV Index: 2
4 PM
Cloudy Weather
66°
Feels Like 64°
0
Humidity: 21%
Wind: 8 mph
UV Index: 1
5 PM
Cloudy Weather
61°
Feels Like 59°
0
Humidity: 26%
Wind: 8 mph
UV Index: 0
6 PM
Cloudy Night
57°
Feels Like 55°
0
Humidity: 29%
Wind: 7 mph
UV Index: 0
7 PM
Cloudy Night
54°
Feels Like 54°
0
Humidity: 34%
Wind: 6 mph
UV Index: 0
8 PM
Night
52°
Feels Like 50°
0
Humidity: 37%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Night
48°
Feels Like 46°
0
Humidity: 42%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy Night
46°
Feels Like 45°
0
Humidity: 45%
Wind: 6 mph
UV Index: 0
11 PM
Night
45°
Feels Like 43°
0
Humidity: 47%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

1 AM
95 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 32.91 µg/m³
  • PM10: 48.67 µg/m³
  • O3: 0.019 ppm
  • NO2: 26.8 ppb
  • SO2: 1.4 ppb
  • CO: 0.41 ppm

Health Recommendations:

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

2 AM
98 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 34.23 µg/m³
  • PM10: 50.46 µg/m³
  • O3: 0.017 ppm
  • NO2: 28.9 ppb
  • SO2: 1.4 ppb
  • CO: 0.42 ppm

Health Recommendations:

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

3 AM
100 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 35.42 µg/m³
  • PM10: 52.07 µg/m³
  • O3: 0.016 ppm
  • NO2: 30.1 ppb
  • SO2: 1.5 ppb
  • CO: 0.44 ppm

Health Recommendations:

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

4 AM
105 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 37.22 µg/m³
  • PM10: 54.14 µg/m³
  • O3: 0.015 ppm
  • NO2: 30.3 ppb
  • SO2: 1.6 ppb
  • CO: 0.44 ppm

Health Recommendations:

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

5 AM
112 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 40.07 µg/m³
  • PM10: 57.48 µg/m³
  • O3: 0.014 ppm
  • NO2: 31 ppb
  • SO2: 1.8 ppb
  • CO: 0.46 ppm

Health Recommendations:

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

6 AM
121 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 43.63 µg/m³
  • PM10: 61.81 µg/m³
  • O3: 0.014 ppm
  • NO2: 32.7 ppb
  • SO2: 2 ppb
  • CO: 0.47 ppm

Health Recommendations:

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

7 AM
132 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 48.11 µg/m³
  • PM10: 67.51 µg/m³
  • O3: 0.013 ppm
  • NO2: 34.9 ppb
  • SO2: 2.2 ppb
  • CO: 0.50 ppm

Health Recommendations:

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

8 AM
143 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 52.42 µg/m³
  • PM10: 72.78 µg/m³
  • O3: 0.015 ppm
  • NO2: 33.9 ppb
  • SO2: 2.5 ppb
  • CO: 0.51 ppm

Health Recommendations:

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

9 AM
150 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 56.18 µg/m³
  • PM10: 77.44 µg/m³
  • O3: 0.023 ppm
  • NO2: 28.9 ppb
  • SO2: 2.7 ppb
  • CO: 0.53 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 60.86 µg/m³
  • PM10: 82.89 µg/m³
  • O3: 0.030 ppm
  • NO2: 27.2 ppb
  • SO2: 2.8 ppb
  • CO: 0.54 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: 65.8 µg/m³
  • PM10: 87.81 µg/m³
  • O3: 0.040 ppm
  • NO2: 25.8 ppb
  • SO2: 3.1 ppb
  • CO: 0.54 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 72.55 µg/m³
  • PM10: 94.39 µg/m³
  • O3: 0.052 ppm
  • NO2: 25.1 ppb
  • SO2: 3.4 ppb
  • CO: 0.53 ppm

Health Recommendations:

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

1 PM
163 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 79.66 µg/m³
  • PM10: 101.18 µg/m³
  • O3: 0.063 ppm
  • NO2: 24.7 ppb
  • SO2: 3.8 ppb
  • CO: 0.53 ppm

Health Recommendations:

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

2 PM
167 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 86.79 µg/m³
  • PM10: 108.21 µg/m³
  • O3: 0.074 ppm
  • NO2: 25.4 ppb
  • SO2: 4.3 ppb
  • CO: 0.54 ppm

Health Recommendations:

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

3 PM
169 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 92.31 µg/m³
  • PM10: 113.52 µg/m³
  • O3: 0.079 ppm
  • NO2: 27.1 ppb
  • SO2: 4.6 ppb
  • CO: 0.55 ppm

Health Recommendations:

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

4 PM
171 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 94.6 µg/m³
  • PM10: 114.89 µg/m³
  • O3: 0.079 ppm
  • NO2: 28.5 ppb
  • SO2: 4.9 ppb
  • CO: 0.56 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 94.66 µg/m³
  • PM10: 114.21 µg/m³
  • O3: 0.071 ppm
  • NO2: 30.9 ppb
  • SO2: 4.8 ppb
  • CO: 0.57 ppm

Health Recommendations:

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

6 PM
172 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 97.04 µg/m³
  • PM10: 116.86 µg/m³
  • O3: 0.062 ppm
  • NO2: 31.4 ppb
  • SO2: 4.7 ppb
  • CO: 0.60 ppm

Health Recommendations:

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

7 PM
174 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 101.05 µg/m³
  • PM10: 122.02 µg/m³
  • O3: 0.055 ppm
  • NO2: 33 ppb
  • SO2: 4.5 ppb
  • CO: 0.63 ppm

Health Recommendations:

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

8 PM
176 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 104.54 µg/m³
  • PM10: 126.93 µg/m³
  • O3: 0.049 ppm
  • NO2: 35.1 ppb
  • SO2: 4.2 ppb
  • CO: 0.66 ppm

Health Recommendations:

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

9 PM
178 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 107.8 µg/m³
  • PM10: 131.49 µg/m³
  • O3: 0.042 ppm
  • NO2: 37.5 ppb
  • SO2: 3.7 ppb
  • CO: 0.69 ppm

Health Recommendations:

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

10 PM
179 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 110.45 µg/m³
  • PM10: 135.23 µg/m³
  • O3: 0.036 ppm
  • NO2: 40.9 ppb
  • SO2: 3.2 ppb
  • CO: 0.72 ppm

Health Recommendations:

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

11 PM
179 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 110.51 µg/m³
  • PM10: 135.38 µg/m³
  • O3: 0.032 ppm
  • NO2: 42.3 ppb
  • SO2: 2.8 ppb
  • CO: 0.72 ppm

Health Recommendations:

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