Hourly Weather | Today Tuesday, February 24, 2026
Fremont, California
2 PM
Cloudy Weather
70°
Feels Like 66°
49
Humidity: 60%
UV Index: 1
Wind: 10 mph
3 PM
Rainy Weather
68°
Feels Like 63°
75
Humidity: 66%
UV Index: 1
Wind: 10 mph
4 PM
Rainy Weather
66°
Feels Like 61°
85
Humidity: 72%
UV Index: 0
Wind: 9 mph
5 PM
Rainy Weather
64°
Feels Like 57°
85
Humidity: 76%
UV Index: 0
Wind: 9 mph
6 PM
Rainy Weather
63°
Feels Like 57°
85
Humidity: 77%
UV Index: 0
Wind: 9 mph
7 PM
Rainy Weather
63°
Feels Like 57°
71
Humidity: 78%
UV Index: 0
Wind: 8 mph
8 PM
Rainy Weather
63°
Feels Like 57°
71
Humidity: 78%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Weather
63°
Feels Like 61°
49
Humidity: 77%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Weather
63°
Feels Like 61°
49
Humidity: 78%
UV Index: 0
Wind: 8 mph
11 PM
Rainy Weather
63°
Feels Like 55°
66
Humidity: 80%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

2 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.59 µg/m³
  • PM10: 7.78 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.67 µg/m³
  • PM10: 8.13 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.71 µg/m³
  • PM10: 8.39 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.73 µg/m³
  • PM10: 8.56 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.76 µg/m³
  • PM10: 8.69 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.78 µg/m³
  • PM10: 8.78 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.76 µg/m³
  • PM10: 8.34 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
39 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.75 µg/m³
  • PM10: 7.88 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.78 µg/m³
  • PM10: 7.75 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.82 µg/m³
  • PM10: 7.51 µg/m³
  • O3: 0.040 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.