Santa Clara, CA Weather & Growing Conditions
Overnight
48°F
Chance Light Rain
A chance of rain before 4am. Partly cloudy, with a low around 48. West northwest wind around 3 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Chance Light Rain | 3 mph WNW | 25% |
| Wednesday | 68°F | Sunny | 2 to 10 mph NW | 1% |
| Wednesday Night | 48°F | Mostly Cloudy then Patchy Fog | 1 to 8 mph WNW | 1% |
| Thursday | 72°F | Patchy Fog then Mostly Sunny | 2 to 7 mph NW | 0% |
| Thursday Night | 46°F | Mostly Clear | 1 to 6 mph NNE | 0% |
| Friday | 74°F | Sunny | 1 to 6 mph N | 0% |
| Friday Night | 49°F | Mostly Clear | 0 to 6 mph NE | 0% |
| Saturday | 77°F | Sunny | 2 mph NNE | 0% |
| Saturday Night | 50°F | Mostly Clear | 0 to 5 mph N | 0% |
| Sunday | 75°F | Mostly Sunny | 0 to 6 mph N | 0% |
| Sunday Night | 51°F | Partly Cloudy | 0 to 6 mph N | 0% |
| Monday | 73°F | Mostly Sunny | 0 to 8 mph NNW | 1% |
| Monday Night | 49°F | Partly Cloudy | 0 to 8 mph NNW | 2% |
| Tuesday | 73°F | Sunny | 0 to 6 mph N | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Santa Clara, CA
Last spring frost
Jan 12
First fall frost
Dec 22
Growing season
347 days
Hardiness zone
9b
Explore more for Santa Clara, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, San Jose, Ca (1.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.