San Martin, CA Weather & Growing Conditions
Overnight
54°F
Areas Of Fog
Areas of fog after 3am. Partly cloudy, with a low around 54. Southeast wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Areas Of Fog | 1 mph SE | 0% |
| Saturday | 87°F | Patchy Fog then Mostly Sunny | 1 to 7 mph SW | 0% |
| Saturday Night | 55°F | Partly Cloudy | 1 to 6 mph WNW | 0% |
| Sunday | 82°F | Patchy Fog then Mostly Cloudy | 1 to 5 mph W | 0% |
| Sunday Night | 54°F | Mostly Cloudy then Patchy Fog | 5 mph WSW | 1% |
| Monday | 82°F | Patchy Fog then Mostly Sunny | 2 to 7 mph SW | 0% |
| Monday Night | 53°F | Partly Cloudy then Patchy Fog | 1 to 7 mph SW | 0% |
| Tuesday | 84°F | Patchy Fog then Mostly Sunny | 1 to 6 mph SW | 0% |
| Tuesday Night | 55°F | Mostly Clear | 0 to 6 mph W | 0% |
| Wednesday | 96°F | Sunny | 0 to 6 mph WSW | 0% |
| Wednesday Night | 61°F | Mostly Clear | 0 to 6 mph N | 0% |
| Thursday | 96°F | Sunny | 1 to 7 mph S | 0% |
| Thursday Night | 59°F | Mostly Clear | 1 to 7 mph W | 0% |
| Friday | 89°F | Mostly Sunny | 2 to 8 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for San Martin, CA
Last spring frost
Feb 24
First fall frost
Nov 27
Growing season
277 days
Hardiness zone
9b
Explore more for San Martin, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Gilroy, Ca (7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.