Santa Clara, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Santa Clara, a city in Santa Clara County, California.

Tonight

56°F

Mostly Clear then Patchy Fog

Patchy fog after 4am. Mostly clear, with a low around 56. North northwest wind 1 to 12 mph, with gusts as high as 21 mph.

7-day forecast for Santa Clara

When	Temp	Forecast	Wind	Precip
Tonight	56°F	Mostly Clear then Patchy Fog	1 to 12 mph NNW	0%
Saturday	82°F	Areas Of Fog then Mostly Sunny	0 to 10 mph NNW	0%
Saturday Night	57°F	Mostly Cloudy	2 to 9 mph NW	0%
Sunday	76°F	Partly Sunny	2 to 9 mph WNW	2%
Sunday Night	56°F	Mostly Cloudy then Patchy Fog	1 to 9 mph W	2%
Monday	79°F	Patchy Fog then Mostly Sunny	1 to 9 mph WSW	0%
Monday Night	56°F	Mostly Clear	2 to 9 mph W	0%
Tuesday	82°F	Sunny	1 to 9 mph WSW	0%
Tuesday Night	58°F	Mostly Clear	0 to 9 mph W	0%
Wednesday	89°F	Sunny	0 to 9 mph NW	0%
Wednesday Night	62°F	Mostly Clear	0 to 9 mph WSW	0%
Thursday	90°F	Sunny	0 to 10 mph WSW	0%
Thursday Night	62°F	Mostly Clear	1 to 10 mph WNW	0%
Friday	84°F	Sunny	1 to 12 mph WNW	0%

Forecast source: National Weather Service (api.weather.gov) for Santa Clara (37.365, -121.968). Updated through the day.

Growing snapshot for Santa Clara

Last spring frost

Jan 12

First fall frost

Dec 22

Growing season

347 days

Hardiness zone

More local growing data for Santa Clara: nearby ZIP 95050 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, San Jose, Ca (1.7 mi from Santa Clara). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.