San Jose, CA Weather & Growing Conditions
Today
67°F
Sunny
Sunny. High near 67, with temperatures falling to around 63 in the afternoon. Northwest wind 2 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 67°F | Sunny | 2 to 9 mph NW | 1% |
| Tonight | 50°F | Mostly Cloudy | 2 to 6 mph N | 1% |
| Thursday | 72°F | Mostly Sunny | 2 to 7 mph NNW | 0% |
| Thursday Night | 50°F | Clear | 3 mph NNE | 0% |
| Friday | 74°F | Sunny | 5 mph NNW | 0% |
| Friday Night | 53°F | Mostly Clear | 0 to 3 mph NE | 0% |
| Saturday | 77°F | Sunny | 2 mph NNW | 0% |
| Saturday Night | 53°F | Mostly Clear | 2 mph N | 0% |
| Sunday | 75°F | Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 54°F | Partly Cloudy | 0 to 3 mph N | 0% |
| Monday | 72°F | Mostly Sunny | 0 to 5 mph NNW | 0% |
| Monday Night | 53°F | Partly Cloudy | 1 to 5 mph N | 1% |
| Tuesday | 72°F | Sunny | 3 mph NNW | 4% |
| Tuesday Night | 54°F | Mostly Clear | 3 mph NE | 10% |
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 (6.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.