Gilroy, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gilroy, a city in Santa Clara County, California.
Today
90°F
Sunny
Sunny. High near 90, with temperatures falling to around 86 in the afternoon. South southwest wind 2 to 8 mph.
7-day forecast for Gilroy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Sunny | 2 to 8 mph SSW | 0% |
| Tonight | 56°F | Mostly Clear | 0 to 7 mph SW | 0% |
| Wednesday | 90°F | Sunny | 0 to 7 mph WSW | 0% |
| Wednesday Night | 57°F | Mostly Clear | 0 to 7 mph WNW | 0% |
| Thursday | 93°F | Sunny | 0 to 7 mph W | 0% |
| Thursday Night | 59°F | Clear | 0 to 7 mph W | 0% |
| Friday | 98°F | Sunny | 0 to 8 mph W | 0% |
| Friday Night | 61°F | Clear | 0 to 8 mph W | 0% |
| Saturday | 96°F | Sunny | 0 to 8 mph WNW | 0% |
| Saturday Night | 60°F | Mostly Clear | 0 to 8 mph WNW | 0% |
| Sunday | 90°F | Sunny | 0 to 9 mph WSW | 0% |
| Sunday Night | 58°F | Mostly Clear | 1 to 9 mph SW | 0% |
| Monday | 84°F | Sunny | 1 to 10 mph SW | 0% |
| Monday Night | 56°F | Mostly Clear | 1 to 10 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Gilroy (37.006, -121.585). Updated through the day.
Growing snapshot for Gilroy
Last spring frost
Feb 24
First fall frost
Nov 27
Growing season
277 days
Hardiness zone
9b
More local growing data for Gilroy: nearby ZIP 95020 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Gilroy, Ca (0.9 mi from Gilroy). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.