Potrero, CA Weather & Growing Conditions
This Afternoon
81°F
Sunny
Sunny, with a high near 81. West wind around 10 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Sunny | 10 mph W | 0% |
| Tonight | 56°F | Mostly Clear | 0 to 10 mph NW | 0% |
| Saturday | 83°F | Sunny | 0 to 10 mph NW | 0% |
| Saturday Night | 59°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Sunday | 82°F | Mostly Sunny | 0 to 10 mph SW | 0% |
| Sunday Night | 58°F | Mostly Cloudy | 0 to 5 mph W | 1% |
| Monday | 77°F | Sunny | 0 to 10 mph SW | 1% |
| Monday Night | 55°F | Mostly Clear | 0 to 10 mph NW | 0% |
| Tuesday | 81°F | Sunny | 0 to 10 mph NW | 0% |
| Tuesday Night | 60°F | Clear | 0 to 10 mph N | 0% |
| Wednesday | 89°F | Sunny | 0 to 5 mph NE | 4% |
| Wednesday Night | 65°F | Clear | 0 to 5 mph N | 2% |
| Thursday | 90°F | Sunny | 5 to 10 mph SE | 6% |
| Thursday Night | 67°F | Mostly Clear | 0 to 5 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Potrero, CA
Last spring frost
Apr 30
First fall frost
Oct 26
Growing season
174 days
Hardiness zone
9a
Explore more for Potrero, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Campo, Ca (7.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.