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.
This Afternoon
66°F
Chance Light Rain
A chance of rain. Partly sunny. High near 66, with temperatures falling to around 62 in the afternoon. South southwest wind 3 to 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Santa Clara
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Chance Light Rain | 3 to 7 mph SSW | 40% |
| Tonight | 48°F | Chance Light Rain then Partly Cloudy | 2 to 7 mph SE | 28% |
| Wednesday | 68°F | Patchy Fog then Sunny | 2 to 10 mph NW | 1% |
| Wednesday Night | 48°F | Mostly Cloudy then Patchy Fog | 1 to 9 mph NNW | 0% |
| Thursday | 71°F | Patchy Fog then Mostly Sunny | 1 to 7 mph N | 0% |
| Thursday Night | 47°F | Mostly Clear then Patchy Fog | 1 to 7 mph N | 0% |
| Friday | 73°F | Patchy Fog then Sunny | 1 to 7 mph N | 0% |
| Friday Night | 50°F | Clear | 0 to 7 mph NE | 0% |
| Saturday | 76°F | Sunny | 0 to 5 mph NNE | 0% |
| Saturday Night | 50°F | Mostly Clear | 0 to 5 mph N | 0% |
| Sunday | 74°F | Mostly Sunny | 1 to 6 mph N | 0% |
| Sunday Night | 51°F | Partly Cloudy | 0 to 6 mph N | 0% |
| Monday | 72°F | Partly Sunny | 0 to 8 mph NNW | 1% |
| Monday Night | 50°F | Partly Cloudy | 1 to 8 mph N | 1% |
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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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 Nov 4, 2026.