Today | Weather | Monday, September 14, 2026

Weather in Fremont, California

02:40 PM
Now
Sunny Weather
82° F
Feels Like 84°
Precipitation 0 %
Wind 12 mph
UV Index (0 - 11+) 4
Humidity 34 %
Today
Sunny Weather
Day 82°
Night 55°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 6

Fremont Weather Forecast Updated

19 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 14, 2025)
Cloudy Weather

Day

79°

Night

57°

Wind

8 mph

UV Index

60

Precipitation

1 %

Air Quality in Fremont

NOW
42 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 5.83 µg/m³
PM10 20.94 µg/m³
O3 0.046 ppm
NO2 0.2 ppb
SO2 0.3 ppb
CO 0.17 ppm
NH3 0 µg/m³
NO 0.09 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)
PM2.55.83 µg/m³
PM1020.94 µg/m³
O389.56 µg/m³
NO20.41 µg/m³
SO20.86 µg/m³
CO198.34 µg/m³
NH30 µg/m³
NO0.09 µg/m³