Hourly Weather | Today Monday, December 29, 2025
Fremont, California
10 PM
Night
45°
Feels Like 43°
0
Humidity: 73%
Wind: 6 mph
UV Index: 0
11 PM
Night
45°
Feels Like 43°
0
Humidity: 73%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

10 PM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.94 µg/m³
  • PM10: 20.57 µg/m³
  • O3: 0.025 ppm
  • NO2: 11 ppb
  • SO2: 0.9 ppb
  • CO: 0.25 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 PM
55 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.43 µg/m³
  • PM10: 21.01 µg/m³
  • O3: 0.024 ppm
  • NO2: 10.4 ppb
  • SO2: 0.9 ppb
  • CO: 0.24 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.