Today | Weather | Tuesday, April 7, 2026

Weather in Hayward, California

08:38 AM
Now
Cloudy Weather
54° F
Feels Like 52°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 1
Humidity 82 %
Today
Cloudy Weather
Day 68°
Night 52°
Precipitation 0 %
Wind 10 mph
UV Index (0 - 11+) 7

Hayward Weather Forecast Updated

55 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 7, 2025)
Cloudy Weather

Day

68°

Night

52°

Wind

8 mph

UV Index

7

Precipitation

25 %

Air Quality in Hayward

NOW
49 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.18 µg/m³
PM10 8.11 µg/m³
O3 0.053 ppm
NO2 0.4 ppb
SO2 0.3 ppb
CO 0.11 ppm
NH3 0 µg/m³
NO 0.06 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)
PM2.53.18 µg/m³
PM108.11 µg/m³
O3103.11 µg/m³
NO20.71 µg/m³
SO20.87 µg/m³
CO128.59 µg/m³
NH30 µg/m³
NO0.06 µg/m³