National Weather Service Forecast for: Fallbrook CA
Issued by: National Weather Service San Diego, CA
Updated: 8:38 pm PDT Jun 29, 2026
 
Tonight

Tonight: Patchy drizzle after 2am. Mostly cloudy, with a low around 58. Southwest wind around 5 mph becoming calm after midnight.
Mostly Cloudy
then Patchy
Drizzle
 Tuesday

Tuesday: Patchy drizzle before 11am. Cloudy through mid morning, then gradual clearing, with a high near 72. Light southwest wind increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Patchy
Drizzle then
Mostly Sunny
 Tuesday
Night
Tuesday Night: Increasing clouds, with a low around 56. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Increasing
Clouds
 Wednesday

Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 75. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Becoming
Sunny
 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 55. South wind 5 to 10 mph becoming light and variable in the evening.
Partly Cloudy

 Thursday

Thursday: Mostly sunny, with a high near 76.
Mostly Sunny

 Thursday
Night
Thursday Night: Increasing clouds, with a low around 56.
Increasing
Clouds
 Friday

Friday: Mostly cloudy, then gradually becoming sunny, with a high near 78.
Decreasing
Clouds
 Friday
Night
Friday Night: Partly cloudy, with a low around 57.
Partly Cloudy
Lo 58 °F Hi 72 °F Lo 56 °F Hi 75 °F Lo 55 °F Hi 76 °F Lo 56 °F Hi 78 °F Lo 57 °F

 

Tonight
 
 Patchy drizzle after 2am. Mostly cloudy, with a low around 58. Southwest wind around 5 mph becoming calm after midnight.
Tuesday
 
 Patchy drizzle before 11am. Cloudy through mid morning, then gradual clearing, with a high near 72. Light southwest wind increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
 
 Increasing clouds, with a low around 56. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Wednesday
 
 Cloudy through mid morning, then gradual clearing, with a high near 75. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Wednesday Night
 
 Partly cloudy, with a low around 55. South wind 5 to 10 mph becoming light and variable in the evening.
Thursday
 
 Mostly sunny, with a high near 76.
Thursday Night
 
 Increasing clouds, with a low around 56.
Friday
 
 Mostly cloudy, then gradually becoming sunny, with a high near 78.
Friday Night
 
 Partly cloudy, with a low around 57.
Independence Day
 
 Mostly sunny, with a high near 80.
Saturday Night
 
 Partly cloudy, with a low around 58.
Sunday
 
 Mostly sunny, with a high near 79.
Sunday Night
 
 Partly cloudy, with a low around 59.
Monday
 
 Partly sunny, then gradually becoming sunny, with a high near 80.

 

Forecast from NOAA-NWS for Fallbrook CA.