Hourly Weather | Today Monday, October 6, 2025
Fremont, California
6 AM
Night
57°
Feels Like 57°
0
Humidity: 76%
Wind: 5 mph
UV Index: 0
7 AM
Night
57°
Feels Like 55°
0
Humidity: 75%
Wind: 5 mph
UV Index: 0
8 AM
Cloudy Weather
57°
Feels Like 59°
0
Humidity: 75%
Wind: 5 mph
UV Index: 6
9 AM
Cloudy Weather
63°
Feels Like 66°
0
Humidity: 63%
Wind: 5 mph
UV Index: 16
10 AM
Cloudy Weather
68°
Feels Like 72°
0
Humidity: 50%
Wind: 5 mph
UV Index: 24
11 AM
Cloudy Weather
72°
Feels Like 75°
0
Humidity: 42%
Wind: 5 mph
UV Index: 35
12 PM
Cloudy Weather
77°
Feels Like 81°
0
Humidity: 36%
Wind: 6 mph
UV Index: 42
1 PM
Cloudy Weather
81°
Feels Like 84°
0
Humidity: 32%
Wind: 6 mph
UV Index: 45
2 PM
Sunny Weather
82°
Feels Like 84°
0
Humidity: 31%
Wind: 7 mph
UV Index: 42
3 PM
Sunny Weather
84°
Feels Like 84°
0
Humidity: 29%
Wind: 8 mph
UV Index: 35
4 PM
Sunny Weather
84°
Feels Like 84°
0
Humidity: 27%
Wind: 8 mph
UV Index: 24
5 PM
Sunny Weather
82°
Feels Like 82°
0
Humidity: 29%
Wind: 8 mph
UV Index: 16
6 PM
Sunny Weather
81°
Feels Like 79°
0
Humidity: 32%
Wind: 8 mph
UV Index: 6
7 PM
Night
75°
Feels Like 73°
0
Humidity: 39%
Wind: 7 mph
UV Index: 0
8 PM
Night
73°
Feels Like 70°
0
Humidity: 45%
Wind: 6 mph
UV Index: 0
9 PM
Night
70°
Feels Like 66°
0
Humidity: 50%
Wind: 5 mph
UV Index: 0
10 PM
Night
66°
Feels Like 64°
0
Humidity: 56%
Wind: 5 mph
UV Index: 0
11 PM
Night
64°
Feels Like 64°
0
Humidity: 59%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

6 AM
49 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.59 µg/m³
  • PM10: 18.67 µg/m³
  • O₃: 26.28 ppb
  • NO₂: 19.30 ppb
  • SO₂: 0.74 ppb
  • CO: 366.57 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

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

Pollutant Concentrations:

  • PM2.5: 11.10 µg/m³
  • PM10: 18.35 µg/m³
  • O₃: 24.86 ppb
  • NO₂: 19.76 ppb
  • SO₂: 0.82 ppb
  • CO: 370.41 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
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 13.21 µg/m³
  • PM10: 18.75 µg/m³
  • O₃: 22.02 ppb
  • NO₂: 20.67 ppb
  • SO₂: 0.99 ppb
  • CO: 378.10 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
52 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 12.41 µg/m³
  • PM10: 16.27 µg/m³
  • O₃: 24.90 ppb
  • NO₂: 17.75 ppb
  • SO₂: 1.14 ppb
  • CO: 334.93 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
52 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 6.54 µg/m³
  • PM10: 9.68 µg/m³
  • O₃: 30.79 ppb
  • NO₂: 13.13 ppb
  • SO₂: 1.19 ppb
  • CO: 274.25 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
52 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 5.29 µg/m³
  • PM10: 7.99 µg/m³
  • O₃: 37.88 ppb
  • NO₂: 7.84 ppb
  • SO₂: 1.20 ppb
  • CO: 206.58 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
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 5.17 µg/m³
  • PM10: 7.71 µg/m³
  • O₃: 43.53 ppb
  • NO₂: 6.62 ppb
  • SO₂: 1.13 ppb
  • CO: 194.26 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
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 4.94 µg/m³
  • PM10: 6.05 µg/m³
  • O₃: 52.44 ppb
  • NO₂: 3.56 ppb
  • SO₂: 1.14 ppb
  • CO: 155.31 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
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 5.36 µg/m³
  • PM10: 6.52 µg/m³
  • O₃: 58.88 ppb
  • NO₂: 2.55 ppb
  • SO₂: 1.01 ppb
  • CO: 147.76 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
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 5.77 µg/m³
  • PM10: 6.91 µg/m³
  • O₃: 60.50 ppb
  • NO₂: 2.84 ppb
  • SO₂: 1.05 ppb
  • CO: 148.59 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
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 6.03 µg/m³
  • PM10: 7.07 µg/m³
  • O₃: 62.12 ppb
  • NO₂: 3.13 ppb
  • SO₂: 1.10 ppb
  • CO: 149.42 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
50 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 6.26 µg/m³
  • PM10: 7.20 µg/m³
  • O₃: 63.74 ppb
  • NO₂: 3.42 ppb
  • SO₂: 1.14 ppb
  • CO: 150.25 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

6 PM
50 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.02 µg/m³
  • PM10: 8.79 µg/m³
  • O₃: 50.02 ppb
  • NO₂: 12.66 ppb
  • SO₂: 1.30 ppb
  • CO: 211.94 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

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

Pollutant Concentrations:

  • PM2.5: 12.73 µg/m³
  • PM10: 13.39 µg/m³
  • O₃: 36.30 ppb
  • NO₂: 21.89 ppb
  • SO₂: 1.47 ppb
  • CO: 273.63 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
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 15.82 µg/m³
  • PM10: 16.47 µg/m³
  • O₃: 22.58 ppb
  • NO₂: 31.13 ppb
  • SO₂: 1.63 ppb
  • CO: 335.31 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
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 17.84 µg/m³
  • PM10: 18.52 µg/m³
  • O₃: 18.13 ppb
  • NO₂: 34.21 ppb
  • SO₂: 1.79 ppb
  • CO: 353.47 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
52 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 19.38 µg/m³
  • PM10: 20.07 µg/m³
  • O₃: 13.68 ppb
  • NO₂: 37.29 ppb
  • SO₂: 1.95 ppb
  • CO: 371.62 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
52 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 20.61 µg/m³
  • PM10: 21.30 µg/m³
  • O₃: 9.23 ppb
  • NO₂: 40.36 ppb
  • SO₂: 2.11 ppb
  • CO: 389.78 ppb

Health Recommendations:

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