San Martin, CA Weather & Growing Conditions
Today
97°F
Sunny
Sunny. High near 97, with temperatures falling to around 93 in the afternoon. South southeast wind 1 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 97°F | Sunny | 1 to 7 mph SSE | 0% |
| Tonight | 57°F | Mostly Clear | 0 to 6 mph SSE | 0% |
| Wednesday | 96°F | Sunny | 0 to 6 mph S | 0% |
| Wednesday Night | 58°F | Mostly Clear | 0 to 6 mph WSW | 0% |
| Thursday | 97°F | Sunny | 0 to 6 mph WSW | 0% |
| Thursday Night | 60°F | Mostly Clear | 0 to 6 mph WNW | 0% |
| Friday | 101°F | Sunny | 1 to 7 mph W | 0% |
| Friday Night | 62°F | Mostly Clear | 0 to 7 mph WNW | 0% |
| Saturday | 99°F | Sunny | 0 to 7 mph WNW | 0% |
| Saturday Night | 61°F | Mostly Clear | 0 to 7 mph WNW | 0% |
| Sunday | 94°F | Sunny | 0 to 8 mph WSW | 0% |
| Sunday Night | 57°F | Mostly Clear then Patchy Fog | 2 to 8 mph SSW | 0% |
| Monday | 87°F | Sunny | 2 to 8 mph SW | 0% |
| Monday Night | 55°F | Mostly Clear | 1 to 8 mph SSW | 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 Aug 4, 2026.