National Weather Service Forecast for: Fallbrook CA
Issued by: National Weather Service San Diego, CA
Updated: 1:09 am PST Dec 6, 2025
 
Overnight

Overnight: Clear, with a low around 49. Northeast wind around 5 mph.
Clear
 Saturday

Saturday: Sunny, with a high near 71. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 48. Calm wind becoming northeast around 5 mph after midnight.
Mostly Clear
 Sunday

Sunday: Sunny, with a high near 74. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 51. Light east wind becoming northeast 5 to 10 mph after midnight.
Mostly Clear
 Monday

Monday: Sunny, with a high near 79.
Sunny
 Monday
Night
Monday Night: Clear, with a low around 54.
Clear
 Tuesday

Tuesday: Sunny, with a high near 81.
Sunny
 Tuesday
Night
Tuesday Night: Clear, with a low around 54.
Clear
Lo 49 °F Hi 71 °F Lo 48 °F Hi 74 °F Lo 51 °F Hi 79 °F Lo 54 °F Hi 81 °F Lo 54 °F

 

Overnight
 
 Clear, with a low around 49. Northeast wind around 5 mph.
Saturday
 
 Sunny, with a high near 71. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
 
 Mostly clear, with a low around 48. Calm wind becoming northeast around 5 mph after midnight.
Sunday
 
 Sunny, with a high near 74. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Sunday Night
 
 Mostly clear, with a low around 51. Light east wind becoming northeast 5 to 10 mph after midnight.
Monday
 
 Sunny, with a high near 79.
Monday Night
 
 Clear, with a low around 54.
Tuesday
 
 Sunny, with a high near 81.
Tuesday Night
 
 Clear, with a low around 54.
Wednesday
 
 Sunny, with a high near 79.
Wednesday Night
 
 Mostly clear, with a low around 53.
Thursday
 
 Sunny, with a high near 77.
Thursday Night
 
 Mostly clear, with a low around 53.
Friday
 
 Sunny, with a high near 78.

 

Forecast from NOAA-NWS for Fallbrook CA.