National Weather Service Forecast for: Bonsall CA
Issued by: National Weather Service San Diego, CA
Updated: 12:05 pm PDT Jul 12, 2026
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 84. Southwest wind around 10 mph.
Mostly Sunny
Tonight

Tonight: Increasing clouds, with a low around 68. Southwest wind around 5 mph becoming calm  in the evening.
Increasing
Clouds
Monday

Monday: Partly sunny, with a high near 84. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Partly Sunny
Monday
Night
Monday Night: Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm  in the evening.
Mostly Cloudy
Tuesday

Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 88. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Decreasing
Clouds
Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 71.
Partly Cloudy
Wednesday

Wednesday: Mostly sunny, with a high near 94.
Mostly Sunny
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 75.
Mostly Clear
Thursday

Thursday: A slight chance of showers after 11am.  Mostly sunny, with a high near 90.
Slight Chance
Showers
Hi 84 °F Lo 68 °F Hi 84 °F Lo 69 °F Hi 88 °F Lo 71 °F Hi 94 °F Lo 75 °F Hi 90 °F

Extreme Heat Watch
 

This Afternoon
 
Mostly sunny, with a high near 84. Southwest wind around 10 mph.
Tonight
 
Increasing clouds, with a low around 68. Southwest wind around 5 mph becoming calm in the evening.
Monday
 
Partly sunny, with a high near 84. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Monday Night
 
Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
 
Mostly cloudy, then gradually becoming sunny, with a high near 88. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
 
Partly cloudy, with a low around 71.
Wednesday
 
Mostly sunny, with a high near 94.
Wednesday Night
 
Mostly clear, with a low around 75.
Thursday
 
A slight chance of showers after 11am. Mostly sunny, with a high near 90.
Thursday Night
 
A slight chance of showers before 11pm. Partly cloudy, with a low around 71.
Friday
 
A slight chance of showers. Partly sunny, with a high near 85.
Friday Night
 
A chance of showers. Mostly cloudy, with a low around 70.
Saturday
 
A slight chance of showers. Mostly cloudy, then gradually becoming sunny, with a high near 86.

 

Forecast from NOAA-NWS for Bonsall CA.