Bonsall, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bonsall, a community in San Diego County, California.
Tonight
59°F
Partly Cloudy
Partly cloudy, with a low around 59. Southeast wind 0 to 5 mph.
7-day forecast for Bonsall
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Partly Cloudy | 0 to 5 mph SE | 0% |
| Saturday | 81°F | Sunny | 0 to 10 mph NW | 0% |
| Saturday Night | 60°F | Partly Cloudy | 0 to 5 mph SE | 0% |
| Sunday | 79°F | Partly Sunny | 0 to 10 mph S | 0% |
| Sunday Night | 61°F | Mostly Cloudy | 0 to 5 mph S | 2% |
| Monday | 77°F | Mostly Sunny | 0 to 10 mph S | 0% |
| Monday Night | 59°F | Mostly Clear | 0 to 10 mph S | 0% |
| Tuesday | 79°F | Sunny | 0 to 10 mph NW | 0% |
| Tuesday Night | 61°F | Mostly Clear | 0 to 10 mph NW | 0% |
| Wednesday | 86°F | Sunny | 0 to 10 mph NW | 4% |
| Wednesday Night | 63°F | Mostly Clear | 0 to 10 mph NE | 2% |
| Thursday | 87°F | Sunny | 0 to 10 mph N | 2% |
| Thursday Night | 65°F | Mostly Clear | 0 to 5 mph NW | 1% |
| Friday | 88°F | Sunny | 0 to 10 mph NW | 7% |
Forecast source: National Weather Service (api.weather.gov) for Bonsall (33.275, -117.192). Updated through the day.
Growing snapshot for Bonsall
Last spring frost
Jan 30
First fall frost
Jan 7
Growing season
365 days
Hardiness zone
10a
More local growing data for Bonsall: nearby ZIP 92003 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Vista, Ca (4 mi from Bonsall). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.