Bonsall, CA Weather & Growing Conditions
Overnight
66°F
Mostly Cloudy
Mostly cloudy, with a low around 66. Southwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Mostly Cloudy | 0 to 5 mph SW | 0% |
| Tuesday | 85°F | Mostly Sunny | 0 to 15 mph SW | 1% |
| Tuesday Night | 66°F | Partly Cloudy | 0 to 10 mph SW | 1% |
| Wednesday | 85°F | Mostly Sunny | 0 to 15 mph SW | 0% |
| Wednesday Night | 66°F | Partly Cloudy | 0 to 10 mph N | 0% |
| Thursday | 86°F | Mostly Sunny | 0 to 10 mph SW | 0% |
| Thursday Night | 67°F | Partly Cloudy | 0 to 5 mph SW | 0% |
| Friday | 88°F | Mostly Sunny | 0 to 10 mph SW | 0% |
| Friday Night | 67°F | Partly Cloudy | 0 to 10 mph SW | 0% |
| Saturday | 89°F | Sunny | 0 to 10 mph SW | 0% |
| Saturday Night | 67°F | Partly Cloudy | 0 to 10 mph S | 0% |
| Sunday | 88°F | Mostly Sunny | 0 to 10 mph S | 1% |
| Sunday Night | 66°F | Partly Cloudy | 0 to 10 mph S | 2% |
| Monday | 87°F | Mostly Sunny | 0 to 10 mph SW | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bonsall, CA
Last spring frost
Jan 30
First fall frost
Jan 7
Growing season
365 days
Hardiness zone
10a
Explore more for Bonsall, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Vista, Ca (4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.