Potrero, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Potrero, a community in San Diego County, California.
Overnight
67°F
Mostly Clear
Mostly clear, with a low around 67. East wind around 0 mph.
7-day forecast for Potrero
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 67°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 93°F | Sunny | 0 to 15 mph SW | 1% |
| Tuesday Night | 66°F | Mostly Clear | 0 to 10 mph S | 1% |
| Wednesday | 92°F | Sunny | 0 to 10 mph SW | 5% |
| Wednesday Night | 67°F | Mostly Clear | 0 to 10 mph S | 2% |
| Thursday | 93°F | Sunny | 0 to 10 mph SW | 4% |
| Thursday Night | 68°F | Mostly Clear | 0 to 5 mph W | 3% |
| Friday | 94°F | Sunny | 0 to 10 mph W | 1% |
| Friday Night | 69°F | Mostly Clear | 0 to 10 mph W | 0% |
| Saturday | 97°F | Sunny | 0 to 10 mph W | 3% |
| Saturday Night | 70°F | Mostly Clear | 0 to 10 mph W | 1% |
| Sunday | 95°F | Slight Chance Showers And Thunderstorms | 0 to 10 mph SW | 15% |
| Sunday Night | 69°F | Mostly Clear | 0 to 10 mph NE | 5% |
| Monday | 92°F | Sunny | 0 to 10 mph SW | 10% |
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 Aug 4, 2026.