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.
Overnight
59°F
Mostly Clear
Mostly clear, with a low around 59. West wind around 3 mph.
7-day forecast for Santa Clara
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Mostly Clear | 3 mph W | 0% |
| Tuesday | 90°F | Sunny | 2 to 9 mph WNW | 0% |
| Tuesday Night | 59°F | Mostly Clear | 2 to 8 mph W | 0% |
| Wednesday | 87°F | Sunny | 2 to 9 mph WNW | 0% |
| Wednesday Night | 60°F | Mostly Clear | 1 to 9 mph WNW | 0% |
| Thursday | 86°F | Sunny | 1 to 9 mph WNW | 0% |
| Thursday Night | 61°F | Mostly Clear | 2 to 9 mph NW | 0% |
| Friday | 90°F | Sunny | 1 to 10 mph NW | 0% |
| Friday Night | 63°F | Mostly Clear | 1 to 10 mph WNW | 0% |
| Saturday | 90°F | Sunny | 1 to 10 mph WNW | 0% |
| Saturday Night | 64°F | Mostly Clear | 2 to 10 mph WNW | 0% |
| Sunday | 86°F | Sunny | 2 to 12 mph W | 0% |
| Sunday Night | 60°F | Mostly Clear | 5 to 12 mph WSW | 0% |
| Monday | 82°F | Sunny | 3 to 10 mph WSW | 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
9b
More local growing data for Santa Clara: nearby ZIP 95050 weather · frost dates · planting calendar · California frost dates
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Loyola
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Mountain View
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Stanford
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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 Aug 4, 2026.