Today | Weather | Tuesday, December 9, 2025

Weather in Fremont, California

05:19 PM
Now
Cloudy Night
54° F
Feels Like 52°
Precipitation 0 %
Wind 5 mph
Humidity 79 %
Today
Cloudy Weather
Day 55°
Night 39°
Precipitation 25 %
Wind 4 mph
UV Index (0 - 11+) 2

Fremont Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 9, 2024)
Night

Day

63°

Night

39°

Wind

6 mph

Precipitation

0 %

Air Quality in Fremont

NOW
37 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 5.04 µg/m³
PM10 10.56 µg/m³
O3 0.040 ppm
NO2 4.5 ppb
SO2 0.5 ppb
CO 0.13 ppm
NH3 0.23 µg/m³
NO 0.1 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

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

Show raw pollutant concentrations (µg/m³)
PM2.55.04 µg/m³
PM1010.56 µg/m³
O378.14 µg/m³
NO28.42 µg/m³
SO21.38 µg/m³
CO148.04 µg/m³
NH30.23 µg/m³
NO0.1 µg/m³