Santa Clara, CA Weather & Growing Conditions
Overnight
56°F
Patchy Fog
Patchy fog after 4am. Partly cloudy, with a low around 56. Northwest wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Patchy Fog | 3 mph NW | 0% |
| Saturday | 82°F | Areas Of Fog then Sunny | 0 to 10 mph NE | 0% |
| Saturday Night | 56°F | Mostly Cloudy | 2 to 9 mph NW | 0% |
| Sunday | 76°F | Patchy Fog then Mostly Cloudy | 1 to 7 mph WNW | 0% |
| Sunday Night | 56°F | Mostly Cloudy then Patchy Fog | 2 to 7 mph W | 1% |
| Monday | 79°F | Patchy Fog then Mostly Sunny | 1 to 8 mph WSW | 0% |
| Monday Night | 56°F | Partly Cloudy | 2 to 8 mph WSW | 0% |
| Tuesday | 81°F | Patchy Fog then Sunny | 1 to 10 mph WSW | 0% |
| Tuesday Night | 57°F | Mostly Clear | 0 to 10 mph W | 0% |
| Wednesday | 88°F | Sunny | 0 to 9 mph NW | 0% |
| Wednesday Night | 61°F | Mostly Clear | 0 to 9 mph WSW | 0% |
| Thursday | 90°F | Sunny | 0 to 10 mph WNW | 0% |
| Thursday Night | 60°F | Mostly Clear | 2 to 10 mph W | 0% |
| Friday | 84°F | Mostly Sunny | 1 to 12 mph WSW | 0% |
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 Sep 19, 2026.