National Weather Service Forecast for: 4 Miles SW Palomar Mountain CA
Issued by: National Weather Service San Diego, CA
Updated: 12:34 am PDT Aug 20, 2026
 
Overnight

Overnight: Mostly clear, with a low around 74. South wind around 5 mph.
Mostly Clear

 Thursday

Thursday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. South wind around 5 mph becoming west in the afternoon. Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
 Thursday
Night
Thursday Night: Mostly clear, with a low around 73. Calm wind becoming southwest around 5 mph.
Mostly Clear

 Friday

Friday: A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 85. Calm wind becoming southwest around 5 mph. Chance of precipitation is 20%.
Sunny then
Slight Chance
T-storms
 Friday
Night
Friday Night: Mostly clear, with a low around 73. Calm wind.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 85.
Sunny

 Saturday
Night
Saturday Night: Clear, with a low around 73.
Clear

 Sunday

Sunday: Sunny, with a high near 84.
Sunny

 Sunday
Night
Sunday Night: Mostly clear, with a low around 73.
Mostly Clear
Lo 74 °F Hi 85 °F Lo 73 °F Hi 85 °F Lo 73 °F Hi 85 °F Lo 73 °F Hi 84 °F Lo 73 °F

 

Overnight
 
 Mostly clear, with a low around 74. South wind around 5 mph.
Thursday
 
 A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. South wind around 5 mph becoming west in the afternoon. Chance of precipitation is 20%.
Thursday Night
 
 Mostly clear, with a low around 73. Calm wind becoming southwest around 5 mph.
Friday
 
 A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 85. Calm wind becoming southwest around 5 mph. Chance of precipitation is 20%.
Friday Night
 
 Mostly clear, with a low around 73. Calm wind.
Saturday
 
 Sunny, with a high near 85.
Saturday Night
 
 Clear, with a low around 73.
Sunday
 
 Sunny, with a high near 84.
Sunday Night
 
 Mostly clear, with a low around 73.
Monday
 
 Sunny, with a high near 85.
Monday Night
 
 Mostly clear, with a low around 73.
Tuesday
 
 Sunny, with a high near 86.
Tuesday Night
 
 Mostly clear, with a low around 74.
Wednesday
 
 Sunny, with a high near 86.

 

Forecast from NOAA-NWS for 4 Miles SW Palomar Mountain CA.