San Jose, CA Weather & Growing Conditions
Today
92°F
Sunny
Sunny. High near 92, with temperatures falling to around 90 in the afternoon. North northeast wind 2 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 92°F | Sunny | 2 to 7 mph NNE | 0% |
| Tonight | 59°F | Mostly Clear | 2 to 6 mph NNW | 0% |
| Wednesday | 90°F | Sunny | 2 to 7 mph NW | 0% |
| Wednesday Night | 60°F | Mostly Clear | 0 to 7 mph WNW | 0% |
| Thursday | 89°F | Sunny | 0 to 8 mph WNW | 0% |
| Thursday Night | 61°F | Mostly Clear | 2 to 8 mph NW | 0% |
| Friday | 94°F | Sunny | 1 to 8 mph NW | 0% |
| Friday Night | 63°F | Mostly Clear | 1 to 8 mph WNW | 0% |
| Saturday | 93°F | Sunny | 1 to 8 mph WNW | 0% |
| Saturday Night | 64°F | Mostly Clear | 2 to 8 mph WNW | 0% |
| Sunday | 89°F | Sunny | 1 to 8 mph WNW | 0% |
| Sunday Night | 60°F | Mostly Clear | 3 to 8 mph W | 0% |
| Monday | 84°F | Sunny | 2 to 8 mph WSW | 0% |
| Monday Night | 58°F | Mostly Clear | 3 to 8 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 12
First fall frost
Dec 22
Growing season
347 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 (5.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.