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Today Hourly 7 days 30 days Air Quality
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Hourly Weather | Today › Wednesday, August 5, 2026
Active Weather Warnings
Hesperia, California
2 AM
Cloudy Night
72°
Feels Like 70°
0
Humidity: 42%
UV Index: 0
Wind: 8 mph
3 AM
Cloudy Night
70°
Feels Like 66°
0
Humidity: 44%
UV Index: 0
Wind: 7 mph
4 AM
Cloudy Night
68°
Feels Like 66°
0
Humidity: 46%
UV Index: 0
Wind: 7 mph
5 AM
Cloudy Night
68°
Feels Like 66°
0
Humidity: 47%
UV Index: 0
Wind: 6 mph
6 AM
Cloudy Night
68°
Feels Like 64°
0
Humidity: 47%
UV Index: 0
Wind: 6 mph
7 AM
Cloudy Weather
70°
Feels Like 70°
0
Humidity: 49%
UV Index: 1
Wind: 6 mph
8 AM
Cloudy Weather
73°
Feels Like 73°
0
Humidity: 43%
UV Index: 2
Wind: 6 mph
9 AM
Cloudy Weather
75°
Feels Like 79°
0
Humidity: 39%
UV Index: 3
Wind: 7 mph
10 AM
Cloudy Weather
81°
Feels Like 84°
0
Humidity: 33%
UV Index: 5
Wind: 7 mph
11 AM
Cloudy Weather
88°
Feels Like 93°
0
Humidity: 27%
UV Index: 7
Wind: 6 mph
12 PM
Cloudy Weather
90°
Feels Like 97°
0
Humidity: 25%
UV Index: 10
Wind: 8 mph
1 PM
Cloudy Weather
93°
Feels Like 99°
0
Humidity: 20%
UV Index: 11
Wind: 10 mph
2 PM
Cloudy Weather
97°
Feels Like 100°
0
Humidity: 17%
UV Index: 10
Wind: 12 mph
3 PM
Cloudy Weather
99°
Feels Like 100°
0
Humidity: 15%
UV Index: 7
Wind: 14 mph
4 PM
Cloudy Weather
100°
Feels Like 100°
0
Humidity: 16%
UV Index: 5
Wind: 16 mph
5 PM
Cloudy Weather
100°
Feels Like 99°
0
Humidity: 17%
UV Index: 3
Wind: 18 mph
6 PM
Cloudy Weather
99°
Feels Like 95°
0
Humidity: 18%
UV Index: 2
Wind: 17 mph
7 PM
Cloudy Weather
95°
Feels Like 91°
0
Humidity: 21%
UV Index: 1
Wind: 15 mph
8 PM
Cloudy Night
90°
Feels Like 84°
0
Humidity: 24%
UV Index: 0
Wind: 14 mph
9 PM
Cloudy Night
84°
Feels Like 81°
0
Humidity: 26%
UV Index: 0
Wind: 13 mph
10 PM
Cloudy Night
82°
Feels Like 79°
0
Humidity: 31%
UV Index: 0
Wind: 12 mph
11 PM
Cloudy Night
79°
Feels Like 75°
0
Humidity: 33%
UV Index: 0
Wind: 10 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 12.4 µg/m³
  • PM10: 28.72 µg/m³
  • O3: 0.036 ppm
  • NO2: 6.9 ppb
  • SO2: 1.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 13.16 µg/m³
  • PM10: 30.17 µg/m³
  • O3: 0.035 ppm
  • NO2: 6.9 ppb
  • SO2: 1.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

4 AM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.7 µg/m³
  • PM10: 31.36 µg/m³
  • O3: 0.034 ppm
  • NO2: 6.8 ppb
  • SO2: 1.9 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 14.2 µg/m³
  • PM10: 32.46 µg/m³
  • O3: 0.033 ppm
  • NO2: 6.9 ppb
  • SO2: 2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

6 AM
55 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.41 µg/m³
  • PM10: 33.29 µg/m³
  • O3: 0.031 ppm
  • NO2: 7.1 ppb
  • SO2: 2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

7 AM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.67 µg/m³
  • PM10: 33.22 µg/m³
  • O3: 0.030 ppm
  • NO2: 7.8 ppb
  • SO2: 2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

8 AM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.65 µg/m³
  • PM10: 33.68 µg/m³
  • O3: 0.030 ppm
  • NO2: 8.1 ppb
  • SO2: 2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

9 AM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.77 µg/m³
  • PM10: 34.07 µg/m³
  • O3: 0.034 ppm
  • NO2: 7.6 ppb
  • SO2: 2.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

10 AM
57 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.08 µg/m³
  • PM10: 35.81 µg/m³
  • O3: 0.040 ppm
  • NO2: 8.1 ppb
  • SO2: 2.4 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

11 AM
63 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 17.96 µg/m³
  • PM10: 39.56 µg/m³
  • O3: 0.051 ppm
  • NO2: 7.7 ppb
  • SO2: 2.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 20.05 µg/m³
  • PM10: 42.51 µg/m³
  • O3: 0.062 ppm
  • NO2: 6.1 ppb
  • SO2: 2.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

1 PM
97 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 22.01 µg/m³
  • PM10: 45.51 µg/m³
  • O3: 0.069 ppm
  • NO2: 4.6 ppb
  • SO2: 2.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

2 PM
109 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 22.81 µg/m³
  • PM10: 46.74 µg/m³
  • O3: 0.073 ppm
  • NO2: 3.6 ppb
  • SO2: 1.9 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

3 PM
103 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 21.44 µg/m³
  • PM10: 44.65 µg/m³
  • O3: 0.071 ppm
  • NO2: 3.1 ppb
  • SO2: 1.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 19.42 µg/m³
  • PM10: 41.49 µg/m³
  • O3: 0.066 ppm
  • NO2: 3 ppb
  • SO2: 1.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 17.6 µg/m³
  • PM10: 38.81 µg/m³
  • O3: 0.061 ppm
  • NO2: 3.4 ppb
  • SO2: 1.3 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.

6 PM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.37 µg/m³
  • PM10: 36.83 µg/m³
  • O3: 0.055 ppm
  • NO2: 4.8 ppb
  • SO2: 1.1 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.

7 PM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.66 µg/m³
  • PM10: 35.56 µg/m³
  • O3: 0.048 ppm
  • NO2: 6.8 ppb
  • SO2: 1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

8 PM
57 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.19 µg/m³
  • PM10: 34.78 µg/m³
  • O3: 0.043 ppm
  • NO2: 7.7 ppb
  • SO2: 1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

9 PM
57 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.08 µg/m³
  • PM10: 34.76 µg/m³
  • O3: 0.042 ppm
  • NO2: 7.1 ppb
  • SO2: 1.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

10 PM
57 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.33 µg/m³
  • PM10: 35.74 µg/m³
  • O3: 0.040 ppm
  • NO2: 7.2 ppb
  • SO2: 1.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

11 PM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.69 µg/m³
  • PM10: 37.01 µg/m³
  • O3: 0.039 ppm
  • NO2: 7.5 ppb
  • SO2: 1.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Hesperia

Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued August 4 at 9:35PM PDT until August 8 at 8:00PM PDT by NWS San Diego CA
Aug 4, 9:35 PM → Aug 8, 8:00 PM
WHAT: Dangerously hot conditions with high temperatures of 100 to
110 expected.

WHERE: Apple and Lucerne Valleys.

WHEN: Until 8 PM PDT Saturday.

IMPACTS: Heat related illnesses increase significantly during
extreme heat events.
+ Read More
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Updated: Aug 4, 11:55 PM Source: NWS Alert

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