Hayward, CA Weather & Growing Conditions
Overnight
50°F
Chance Light Rain
A chance of rain before 4am. Partly cloudy, with a low around 50. Northeast wind around 7 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Chance Light Rain | 7 mph NE | 25% |
| Wednesday | 66°F | Sunny | 2 to 10 mph NNW | 2% |
| Wednesday Night | 51°F | Mostly Cloudy then Patchy Fog | 2 to 8 mph SSE | 2% |
| Thursday | 69°F | Patchy Fog then Mostly Sunny | 2 to 6 mph NNE | 0% |
| Thursday Night | 50°F | Mostly Clear | 5 mph WNW | 0% |
| Friday | 71°F | Sunny | 2 to 6 mph NNE | 0% |
| Friday Night | 51°F | Mostly Clear | 1 to 6 mph ENE | 0% |
| Saturday | 73°F | Sunny | 5 mph NNE | 0% |
| Saturday Night | 52°F | Mostly Clear | 1 to 5 mph WNW | 0% |
| Sunday | 72°F | Mostly Sunny | 1 to 6 mph NNW | 0% |
| Sunday Night | 54°F | Partly Cloudy | 1 to 6 mph WSW | 0% |
| Monday | 70°F | Partly Sunny | 1 to 7 mph WSW | 2% |
| Monday Night | 53°F | Partly Cloudy | 2 to 7 mph SW | 2% |
| Tuesday | 69°F | Sunny | 1 to 7 mph NNE | 5% |
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 (1.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.