Potrero, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Potrero, a community in San Diego County, California.
Today
70°F
Sunny
Sunny, with a high near 70. West wind 5 to 10 mph.
7-day forecast for Potrero
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Sunny | 5 to 10 mph W | 2% |
| Tonight | 51°F | Partly Cloudy | 0 to 5 mph NW | 4% |
| Wednesday | 68°F | Sunny | 0 to 10 mph NW | 0% |
| Wednesday Night | 51°F | Mostly Clear | 0 to 5 mph N | 0% |
| Thursday | 74°F | Sunny | 5 mph NW | 0% |
| Thursday Night | 52°F | Mostly Clear | 0 to 10 mph NE | 0% |
| Friday | 76°F | Sunny | 5 to 10 mph NE | 0% |
| Friday Night | 54°F | Clear | 5 to 15 mph NE | 0% |
| Saturday | 77°F | Sunny | 10 to 15 mph NE | 0% |
| Saturday Night | 57°F | Mostly Clear | 10 to 15 mph NE | 0% |
| Sunday | 78°F | Sunny | 10 to 20 mph NE | 0% |
| Sunday Night | 58°F | Mostly Clear | 5 to 25 mph NE | 0% |
| Monday | 77°F | Mostly Sunny | 5 to 10 mph E | 0% |
| Monday Night | 54°F | Partly Cloudy | 0 to 5 mph NE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Potrero (32.613, -116.607). Updated through the day.
Growing snapshot for Potrero
Last spring frost
Apr 30
First fall frost
Oct 26
Growing season
174 days
Hardiness zone
9a
More local growing data for Potrero: nearby ZIP 91963 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Campo, Ca (7.5 mi from Potrero). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.