Hourly Weather | Today Sunday, October 5, 2025
San Jose, California
2 AM
Night
57°
Feels Like 57°
0
Humidity: 81%
Wind: 4 mph
UV Index: 0
3 AM
Night
57°
Feels Like 57°
0
Humidity: 82%
Wind: 2 mph
UV Index: 0
4 AM
Night
55°
Feels Like 57°
0
Humidity: 84%
Wind: 2 mph
UV Index: 0
5 AM
Night
55°
Feels Like 57°
0
Humidity: 85%
Wind: 2 mph
UV Index: 0
6 AM
Night
55°
Feels Like 57°
0
Humidity: 85%
Wind: 2 mph
UV Index: 0
7 AM
Night
55°
Feels Like 55°
0
Humidity: 86%
Wind: 2 mph
UV Index: 0
8 AM
Cloudy Weather
57°
Feels Like 61°
0
Humidity: 80%
Wind: 2 mph
UV Index: 7
9 AM
Cloudy Weather
61°
Feels Like 64°
0
Humidity: 72%
Wind: 2 mph
UV Index: 16
10 AM
Cloudy Weather
64°
Feels Like 72°
0
Humidity: 65%
Wind: 2 mph
UV Index: 25
11 AM
Cloudy Weather
70°
Feels Like 73°
0
Humidity: 56%
Wind: 4 mph
UV Index: 35
12 PM
Cloudy Weather
72°
Feels Like 79°
0
Humidity: 50%
Wind: 5 mph
UV Index: 43
1 PM
Cloudy Weather
75°
Feels Like 81°
0
Humidity: 44%
Wind: 6 mph
UV Index: 46
2 PM
Cloudy Weather
79°
Feels Like 81°
0
Humidity: 39%
Wind: 7 mph
UV Index: 43
3 PM
Cloudy Weather
79°
Feels Like 81°
0
Humidity: 38%
Wind: 8 mph
UV Index: 35
4 PM
Cloudy Weather
81°
Feels Like 81°
0
Humidity: 35%
Wind: 9 mph
UV Index: 25
5 PM
Cloudy Weather
79°
Feels Like 77°
0
Humidity: 40%
Wind: 10 mph
UV Index: 16
6 PM
Cloudy Weather
75°
Feels Like 73°
0
Humidity: 47%
Wind: 9 mph
UV Index: 7
7 PM
Cloudy Night
73°
Feels Like 70°
0
Humidity: 55%
Wind: 8 mph
UV Index: 0
8 PM
Night
70°
Feels Like 66°
0
Humidity: 61%
Wind: 6 mph
UV Index: 0
9 PM
Night
66°
Feels Like 64°
0
Humidity: 67%
Wind: 5 mph
UV Index: 0
10 PM
Night
66°
Feels Like 64°
0
Humidity: 70%
Wind: 5 mph
UV Index: 0
11 PM
Night
64°
Feels Like 63°
0
Humidity: 72%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 19.40 µg/m³
  • PM10: 22.42 µg/m³
  • O₃: 7.78 ppb
  • NO₂: 19.97 ppb
  • SO₂: 1.53 ppb
  • CO: 242.25 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
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 19.18 µg/m³
  • PM10: 22.13 µg/m³
  • O₃: 8.56 ppb
  • NO₂: 18.40 ppb
  • SO₂: 1.51 ppb
  • CO: 231.55 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
57 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 18.71 µg/m³
  • PM10: 21.68 µg/m³
  • O₃: 9.34 ppb
  • NO₂: 16.82 ppb
  • SO₂: 1.48 ppb
  • CO: 220.84 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
58 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 19.13 µg/m³
  • PM10: 21.86 µg/m³
  • O₃: 10.12 ppb
  • NO₂: 15.25 ppb
  • SO₂: 1.46 ppb
  • CO: 210.14 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
59 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 19.80 µg/m³
  • PM10: 21.76 µg/m³
  • O₃: 9.09 ppb
  • NO₂: 14.46 ppb
  • SO₂: 1.39 ppb
  • CO: 222.45 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
60 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 20.57 µg/m³
  • PM10: 22.19 µg/m³
  • O₃: 8.07 ppb
  • NO₂: 13.67 ppb
  • SO₂: 1.32 ppb
  • CO: 234.76 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
61 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 21.72 µg/m³
  • PM10: 23.18 µg/m³
  • O₃: 7.04 ppb
  • NO₂: 12.88 ppb
  • SO₂: 1.25 ppb
  • CO: 247.07 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
62 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 14.51 µg/m³
  • PM10: 17.33 µg/m³
  • O₃: 18.02 ppb
  • NO₂: 10.11 ppb
  • SO₂: 1.33 ppb
  • CO: 213.41 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
61 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.90 µg/m³
  • PM10: 13.84 µg/m³
  • O₃: 28.99 ppb
  • NO₂: 7.33 ppb
  • SO₂: 1.41 ppb
  • CO: 179.76 ppb

Health Recommendations:

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

11 AM
61 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.98 µg/m³
  • PM10: 11.48 µg/m³
  • O₃: 39.96 ppb
  • NO₂: 4.56 ppb
  • SO₂: 1.49 ppb
  • CO: 146.10 ppb

Health Recommendations:

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

12 PM
61 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.62 µg/m³
  • PM10: 11.01 µg/m³
  • O₃: 44.10 ppb
  • NO₂: 3.90 ppb
  • SO₂: 1.38 ppb
  • CO: 143.82 ppb

Health Recommendations:

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

1 PM
60 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.65 µg/m³
  • PM10: 10.96 µg/m³
  • O₃: 48.24 ppb
  • NO₂: 3.23 ppb
  • SO₂: 1.27 ppb
  • CO: 141.55 ppb

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.75 µg/m³
  • PM10: 10.98 µg/m³
  • O₃: 52.38 ppb
  • NO₂: 2.57 ppb
  • SO₂: 1.17 ppb
  • CO: 139.27 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
59 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.80 µg/m³
  • PM10: 10.89 µg/m³
  • O₃: 52.99 ppb
  • NO₂: 2.77 ppb
  • SO₂: 1.19 ppb
  • CO: 141.14 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
59 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.77 µg/m³
  • PM10: 10.73 µg/m³
  • O₃: 53.61 ppb
  • NO₂: 2.97 ppb
  • SO₂: 1.22 ppb
  • CO: 143.01 ppb

Health Recommendations:

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