Hourly Weather | Today Thursday, September 25, 2025
Chula Vista, California
2 PM
Cloudy Weather
75°
Feels Like 79°
0
Humidity: 68%
Wind: 12 mph
UV Index: 56
3 PM
Cloudy Weather
73°
Feels Like 77°
0
Humidity: 67%
Wind: 12 mph
UV Index: 44
4 PM
Cloudy Weather
73°
Feels Like 73°
0
Humidity: 70%
Wind: 10 mph
UV Index: 32
5 PM
Cloudy Weather
72°
Feels Like 72°
0
Humidity: 72%
Wind: 10 mph
UV Index: 20
6 PM
Cloudy Weather
72°
Feels Like 70°
0
Humidity: 74%
Wind: 9 mph
UV Index: 10
7 PM
Cloudy Night
68°
Feels Like 66°
0
Humidity: 82%
Wind: 7 mph
UV Index: 0
8 PM
Cloudy Night
66°
Feels Like 64°
0
Humidity: 89%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Night
68°
Feels Like 66°
0
Humidity: 82%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy Night
66°
Feels Like 66°
0
Humidity: 83%
Wind: 6 mph
UV Index: 0
11 PM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 88%
Wind: 5 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

2 PM
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.95 µg/m³
  • PM10: 13.20 µg/m³
  • O₃: 39.52 ppb
  • NO₂: 4.06 ppb
  • SO₂: 0.82 ppb
  • CO: 141.86 ppb

Health Recommendations:

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

3 PM
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.72 µg/m³
  • PM10: 13.48 µg/m³
  • O₃: 40.00 ppb
  • NO₂: 4.27 ppb
  • SO₂: 0.75 ppb
  • CO: 142.80 ppb

Health Recommendations:

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

4 PM
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.28 µg/m³
  • PM10: 13.20 µg/m³
  • O₃: 40.48 ppb
  • NO₂: 4.49 ppb
  • SO₂: 0.68 ppb
  • CO: 143.73 ppb

Health Recommendations:

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

5 PM
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.04 µg/m³
  • PM10: 12.82 µg/m³
  • O₃: 40.96 ppb
  • NO₂: 4.70 ppb
  • SO₂: 0.62 ppb
  • CO: 144.67 ppb

Health Recommendations:

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

6 PM
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.16 µg/m³
  • PM10: 12.92 µg/m³
  • O₃: 39.61 ppb
  • NO₂: 5.82 ppb
  • SO₂: 0.63 ppb
  • CO: 150.67 ppb

Health Recommendations:

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

7 PM
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.45 µg/m³
  • PM10: 13.20 µg/m³
  • O₃: 38.26 ppb
  • NO₂: 6.93 ppb
  • SO₂: 0.65 ppb
  • CO: 156.68 ppb

Health Recommendations:

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

8 PM
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.68 µg/m³
  • PM10: 13.46 µg/m³
  • O₃: 36.92 ppb
  • NO₂: 8.05 ppb
  • SO₂: 0.67 ppb
  • CO: 162.68 ppb

Health Recommendations:

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

9 PM
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.56 µg/m³
  • PM10: 13.06 µg/m³
  • O₃: 36.75 ppb
  • NO₂: 7.91 ppb
  • SO₂: 0.67 ppb
  • CO: 161.09 ppb

Health Recommendations:

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

10 PM
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.60 µg/m³
  • PM10: 12.91 µg/m³
  • O₃: 36.58 ppb
  • NO₂: 7.78 ppb
  • SO₂: 0.66 ppb
  • CO: 159.50 ppb

Health Recommendations:

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

11 PM
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.83 µg/m³
  • PM10: 13.13 µg/m³
  • O₃: 36.42 ppb
  • NO₂: 7.64 ppb
  • SO₂: 0.66 ppb
  • CO: 157.92 ppb

Health Recommendations:

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