Bonsall, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bonsall, a community in San Diego County, California.
Tonight
54°F
Partly Cloudy
Partly cloudy, with a low around 54. South wind 0 to 5 mph.
7-day forecast for Bonsall
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Partly Cloudy | 0 to 5 mph S | 1% |
| Wednesday | 75°F | Sunny | 0 to 10 mph S | 0% |
| Wednesday Night | 54°F | Mostly Clear | 0 to 5 mph E | 0% |
| Thursday | 79°F | Sunny | 0 to 5 mph NW | 0% |
| Thursday Night | 56°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Friday | 83°F | Sunny | 0 to 5 mph NW | 0% |
| Friday Night | 58°F | Clear | 5 to 15 mph N | 0% |
| Saturday | 87°F | Sunny | 5 mph N | 0% |
| Saturday Night | 60°F | Mostly Clear | 5 to 15 mph NE | 0% |
| Sunday | 88°F | Sunny | 0 to 10 mph N | 0% |
| Sunday Night | 61°F | Partly Cloudy | 5 to 15 mph E | 0% |
| Monday | 85°F | Mostly Sunny | 0 to 5 mph SE | 0% |
| Monday Night | 60°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Tuesday | 82°F | Mostly Sunny | 0 to 5 mph NW | 2% |
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 Nov 4, 2026.