See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
22°
Clear
Feels Like: 22°
Min: 12°
Max: 22°
The next few hours will be clear, with today reaching 22°C and dropping to 12°C. The coming days will be clear from afternoon until night.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:55
Sunrise
19:09
Sunset
Moon
Waxing Crescent
11:43
Moonrise
20:54
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
Upgrade to access real-time air quality data for Hayward.
Resources
UV Index
Humidity
Weather in Hayward today, September 15, 2026
Hayward looks cloudy on September 15, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward.
Expect highs of 22°C and cooler readings close to 12°C. Relative humidity sits between 53% and 93%, reaching its peak around 23:00. Expect gentle winds, highest near 16:00 at 5.8 km/h.
The afternoon keeps an overcast feel, as cloud reaches about 94% around 20:00. Outdoor plans may still want a flexible backup. Expect visibility near 14.9 km, with poorer spells close to 13.1 km. Sunrise is at 06:55 and sunset at 19:09, giving 12 hours 13 minutes of sunlight today.
Taken together, overcast skies in Hayward on September 15, 2026 favour indoor or covered options, with temperatures near 22°C.
Frequently asked questions about weather in Hayward
How warm does it get in Hayward?
The warmest month in Hayward is August, with average high temperatures of 28°C. The average temperature during this period is around 20°C.
How cold does it get in Hayward?
The coldest month in Hayward is December, with average low temperatures of 6°C. The average temperature during this period is around 10°C.
What is the wettest time of year in Hayward?
The wettest month in Hayward is January, with an average of 104mm of precipitation.
What is the driest time of year in Hayward?
The driest month in Hayward is July, with an average of 0mm of precipitation.
Explore more weather forecasts
- Cherryland, California
- New York City, New York
- Castro Valley, California
- Los Angeles, California
- Fairview, California
- Brooklyn, New York
- San Lorenzo, California
- Chicago, Illinois
- Ashland, California
- Houston, Texas
- San Leandro, California
- Queens, New York
- Union City, California
- Phoenix, Arizona
- Dublin, California
- Philadelphia, Pennsylvania