San Jose, CA Weather & Growing Conditions
Overnight
60°F
Mostly Clear
Mostly clear, with a low around 60. South wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Mostly Clear | 2 mph S | 0% |
| Tuesday | 92°F | Sunny | 2 to 8 mph WSW | 0% |
| Tuesday Night | 60°F | Mostly Clear | 2 to 7 mph WSW | 0% |
| Wednesday | 91°F | Sunny | 1 to 7 mph WSW | 0% |
| Wednesday Night | 60°F | Mostly Clear | 0 to 7 mph W | 0% |
| Thursday | 90°F | Sunny | 0 to 8 mph W | 0% |
| Thursday Night | 62°F | Mostly Clear | 2 to 8 mph NW | 0% |
| Friday | 94°F | Sunny | 1 to 9 mph NW | 0% |
| Friday Night | 64°F | Clear | 1 to 9 mph NW | 0% |
| Saturday | 94°F | Sunny | 0 to 9 mph WNW | 0% |
| Saturday Night | 65°F | Mostly Clear | 2 to 9 mph W | 0% |
| Sunday | 90°F | Sunny | 1 to 9 mph W | 0% |
| Sunday Night | 60°F | Mostly Clear | 5 to 9 mph WSW | 0% |
| Monday | 84°F | Sunny | 3 to 9 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for San Jose, CA
Last spring frost
Jan 2
First fall frost
Dec 25
Growing season
362 days
Hardiness zone
9b
Explore more for San Jose, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, San Jose, Ca (1.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.