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Today Hourly 7 days 30 days Air Quality
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Hourly Weather | Today | Sunday, August 24, 2025
Ontario, California
1 AM
NightNighttime, with dark skies and stars or a moon visible.
75°
Feels Like 73°
0
Humidity: 58%
Wind: 2 mph
UV Index: 0
2 AM
NightNighttime, with dark skies and stars or a moon visible.
73°
Feels Like 73°
0
Humidity: 60%
Wind: 2 mph
UV Index: 0
3 AM
NightNighttime, with dark skies and stars or a moon visible.
73°
Feels Like 72°
0
Humidity: 63%
Wind: 2 mph
UV Index: 0
4 AM
NightNighttime, with dark skies and stars or a moon visible.
72°
Feels Like 72°
0
Humidity: 65%
Wind: 2 mph
UV Index: 0
5 AM
NightNighttime, with dark skies and stars or a moon visible.
72°
Feels Like 70°
0
Humidity: 68%
Wind: 2 mph
UV Index: 0
6 AM
NightNighttime, with dark skies and stars or a moon visible.
70°
Feels Like 68°
0
Humidity: 73%
Wind: 2 mph
UV Index: 0
7 AM
Sunny WeatherSunny weather, clear skies and sunny weather.
73°
Feels Like 73°
0
Humidity: 65%
Wind: 2 mph
UV Index: 5
8 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
77°
Feels Like 79°
0
Humidity: 58%
Wind: 2 mph
UV Index: 15
9 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
81°
Feels Like 84°
0
Humidity: 50%
Wind: 4 mph
UV Index: 26
10 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
84°
Feels Like 90°
0
Humidity: 43%
Wind: 5 mph
UV Index: 41
11 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
88°
Feels Like 93°
0
Humidity: 37%
Wind: 6 mph
UV Index: 60
12 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
90°
Feels Like 97°
0
Humidity: 32%
Wind: 8 mph
UV Index: 83
1 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
93°
Feels Like 99°
0
Humidity: 29%
Wind: 9 mph
UV Index: 92
2 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
95°
Feels Like 99°
0
Humidity: 26%
Wind: 12 mph
UV Index: 83
3 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
95°
Feels Like 97°
0
Humidity: 25%
Wind: 13 mph
UV Index: 60
4 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
93°
Feels Like 93°
0
Humidity: 26%
Wind: 14 mph
UV Index: 41
5 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
91°
Feels Like 91°
0
Humidity: 28%
Wind: 14 mph
UV Index: 26
6 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
90°
Feels Like 88°
0
Humidity: 31%
Wind: 12 mph
UV Index: 15
7 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
86°
Feels Like 82°
0
Humidity: 35%
Wind: 10 mph
UV Index: 5
8 PM
NightNighttime, with dark skies and stars or a moon visible.
82°
Feels Like 81°
0
Humidity: 39%
Wind: 9 mph
UV Index: 0
9 PM
NightNighttime, with dark skies and stars or a moon visible.
81°
Feels Like 77°
0
Humidity: 45%
Wind: 8 mph
UV Index: 0
10 PM
NightNighttime, with dark skies and stars or a moon visible.
77°
Feels Like 75°
0
Humidity: 51%
Wind: 6 mph
UV Index: 0
11 PM
NightNighttime, with dark skies and stars or a moon visible.
75°
Feels Like 73°
0
Humidity: 58%
Wind: 5 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

1 AM
65 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 26.96 µg/m³
  • PM10: 28.98 µg/m³
  • O₃: 10.59 ppb
  • NO₂: 32.25 ppb
  • SO₂: 6.11 ppb
  • CO: 296.49 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

2 AM
66 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 27.49 µg/m³
  • PM10: 29.72 µg/m³
  • O₃: 6.92 ppb
  • NO₂: 33.56 ppb
  • SO₂: 5.90 ppb
  • CO: 311.24 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

3 AM
67 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 27.26 µg/m³
  • PM10: 29.64 µg/m³
  • O₃: 7.57 ppb
  • NO₂: 32.49 ppb
  • SO₂: 5.94 ppb
  • CO: 303.99 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

4 AM
68 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 26.28 µg/m³
  • PM10: 28.92 µg/m³
  • O₃: 8.22 ppb
  • NO₂: 31.43 ppb
  • SO₂: 5.99 ppb
  • CO: 296.75 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

5 AM
69 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 25.04 µg/m³
  • PM10: 27.75 µg/m³
  • O₃: 8.87 ppb
  • NO₂: 30.36 ppb
  • SO₂: 6.04 ppb
  • CO: 289.50 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

6 AM
70 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 23.66 µg/m³
  • PM10: 26.37 µg/m³
  • O₃: 12.72 ppb
  • NO₂: 29.09 ppb
  • SO₂: 5.74 ppb
  • CO: 297.23 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

7 AM
71 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 22.98 µg/m³
  • PM10: 25.90 µg/m³
  • O₃: 16.57 ppb
  • NO₂: 27.81 ppb
  • SO₂: 5.44 ppb
  • CO: 304.95 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

8 AM
72 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 23.18 µg/m³
  • PM10: 25.35 µg/m³
  • O₃: 20.42 ppb
  • NO₂: 26.53 ppb
  • SO₂: 5.15 ppb
  • CO: 312.68 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

9 AM
72 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 18.75 µg/m³
  • PM10: 21.90 µg/m³
  • O₃: 31.33 ppb
  • NO₂: 23.60 ppb
  • SO₂: 5.21 ppb
  • CO: 281.95 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

10 AM
73 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 17.87 µg/m³
  • PM10: 20.64 µg/m³
  • O₃: 42.25 ppb
  • NO₂: 20.67 ppb
  • SO₂: 5.27 ppb
  • CO: 251.21 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

Current Real-Time Air Quality Report