Hayward, CA Weather & Growing Conditions
Tonight
50°F
Chance Light Rain then Mostly Cloudy
A chance of rain before 10pm. Mostly cloudy, with a low around 50. East wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Chance Light Rain then Mostly Cloudy | 5 mph E | 41% |
| Wednesday | 67°F | Sunny | 2 to 8 mph NNW | 1% |
| Wednesday Night | 51°F | Mostly Cloudy then Patchy Fog | 1 to 7 mph N | 0% |
| Thursday | 70°F | Patchy Fog then Sunny | 1 to 5 mph NNW | 0% |
| Thursday Night | 51°F | Mostly Clear | 1 to 5 mph WSW | 0% |
| Friday | 72°F | Sunny | 1 to 5 mph NNE | 0% |
| Friday Night | 52°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Saturday | 75°F | Sunny | 5 mph NNE | 0% |
| Saturday Night | 53°F | Mostly Clear | 1 to 5 mph W | 0% |
| Sunday | 73°F | Mostly Sunny | 1 to 5 mph NW | 0% |
| Sunday Night | 54°F | Mostly Cloudy | 0 to 5 mph W | 0% |
| Monday | 71°F | Partly Sunny | 0 to 6 mph SSW | 1% |
| Monday Night | 53°F | Mostly Cloudy | 1 to 6 mph SW | 1% |
| Tuesday | 72°F | Mostly Sunny | 1 to 6 mph WNW | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hayward, CA
Last spring frost
Jan 2
First fall frost
Dec 25
Growing season
365 days
Hardiness zone
10a
Explore more for Hayward, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Hayward Air Terminal, Ca (2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.