Castroville, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Castroville, a community in Monterey County, California.

Today

67°F

Sunny

Sunny. High near 67, with temperatures falling to around 64 in the afternoon. Northwest wind 3 to 9 mph.

7-day forecast for Castroville

When	Temp	Forecast	Wind	Precip
Today	67°F	Sunny	3 to 9 mph NW	0%
Tonight	48°F	Mostly Cloudy	5 to 10 mph ENE	2%
Thursday	69°F	Mostly Sunny	2 to 8 mph NNW	0%
Thursday Night	47°F	Mostly Clear	8 mph ENE	0%
Friday	71°F	Sunny	2 to 7 mph N	0%
Friday Night	49°F	Mostly Clear	6 to 10 mph ENE	0%
Saturday	74°F	Sunny	2 to 8 mph N	0%
Saturday Night	50°F	Mostly Clear	3 to 7 mph SE	0%
Sunday	74°F	Sunny	2 to 7 mph NNW	0%
Sunday Night	51°F	Partly Cloudy	5 to 9 mph ENE	0%
Monday	72°F	Partly Sunny	1 to 7 mph NNE	0%
Monday Night	50°F	Mostly Cloudy	5 to 8 mph NNE	0%
Tuesday	71°F	Mostly Sunny	1 to 8 mph NE	1%
Tuesday Night	51°F	Partly Cloudy	5 to 9 mph E	5%

Forecast source: National Weather Service (api.weather.gov) for Castroville (36.765, -121.753). Updated through the day.

Growing snapshot for Castroville

Last spring frost

Feb 4

First fall frost

Dec 6

Growing season

311 days

Hardiness zone

More local growing data for Castroville: nearby ZIP 95012 weather · frost dates · planting calendar · California frost dates

Nearby towns & communities

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All California locations ›

Climate data from the nearest NOAA station, Salinas #2, Ca (9.7 mi from Castroville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.