Watsonville, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Watsonville, a city in Santa Cruz County, California.
Tonight
55°F
Mostly Cloudy then Patchy Fog
Patchy fog after 2am. Mostly cloudy, with a low around 55. East southeast wind 1 to 5 mph.
7-day forecast for Watsonville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Mostly Cloudy then Patchy Fog | 1 to 5 mph ESE | 0% |
| Saturday | 73°F | Patchy Fog then Mostly Sunny | 0 to 7 mph SSW | 0% |
| Saturday Night | 56°F | Mostly Cloudy then Patchy Fog | 1 to 5 mph S | 0% |
| Sunday | 70°F | Patchy Fog then Mostly Cloudy | 1 to 7 mph SSE | 2% |
| Sunday Night | 55°F | Mostly Cloudy | 2 to 7 mph WSW | 2% |
| Monday | 69°F | Patchy Fog then Mostly Sunny | 2 to 8 mph WSW | 0% |
| Monday Night | 55°F | Partly Cloudy then Patchy Fog | 1 to 8 mph SW | 1% |
| Tuesday | 72°F | Areas Of Fog then Mostly Sunny | 1 to 7 mph SW | 0% |
| Tuesday Night | 57°F | Partly Cloudy | 1 to 7 mph SSE | 0% |
| Wednesday | 82°F | Mostly Sunny | 1 to 7 mph W | 0% |
| Wednesday Night | 60°F | Partly Cloudy | 1 to 6 mph NNE | 0% |
| Thursday | 83°F | Sunny | 1 to 7 mph ENE | 0% |
| Thursday Night | 60°F | Partly Cloudy | 2 to 7 mph NW | 0% |
| Friday | 78°F | Mostly Sunny | 1 to 7 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Watsonville (36.924, -121.772). Updated through the day.
Growing snapshot for Watsonville
Last spring frost
Jan 31
First fall frost
Dec 9
Growing season
317 days
Hardiness zone
9b
More local growing data for Watsonville: nearby ZIP 95019 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Watsonville Muni Ap, Ca (0.2 mi from Watsonville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.