National Weather Service Forecast for: 3 Miles NW San Diego-Rancho Bernardo CA
Issued by: National Weather Service San Diego, CA
Updated: 12:56 pm PST Dec 17, 2025
 
Overnight

Overnight: Mostly clear, with a low around 50. Calm wind.
Mostly Clear

Thursday

Thursday: Sunny, with a high near 80. Calm wind becoming southwest around 5 mph in the afternoon.
Sunny

Thursday
Night
Thursday Night: Mostly clear, with a low around 52. East wind around 5 mph becoming calm.
Mostly Clear

Friday

Friday: Sunny, with a high near 76. Calm wind becoming southwest around 5 mph in the afternoon.
Sunny

Friday
Night
Friday Night: Partly cloudy, with a low around 49. Calm wind.
Partly Cloudy

Saturday

Saturday: Mostly sunny, with a high near 71.
Mostly Sunny

Saturday
Night
Saturday Night: Patchy fog after 10pm.  Otherwise, partly cloudy, with a low around 49.
Patchy Fog

Sunday

Sunday: Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 72.
Patchy Fog
then Mostly
Sunny
Sunday
Night
Sunday Night: Patchy fog after 10pm.  Otherwise, partly cloudy, with a low around 49.
Patchy Fog

Lo 50 °F Hi 80 °F Lo 52 °F Hi 76 °F Lo 49 °F Hi 71 °F Lo 49 °F Hi 72 °F Lo 49 °F

 

Overnight
 
Mostly clear, with a low around 50. Calm wind.
Thursday
 
Sunny, with a high near 80. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
 
Mostly clear, with a low around 52. East wind around 5 mph becoming calm.
Friday
 
Sunny, with a high near 76. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
 
Partly cloudy, with a low around 49. Calm wind.
Saturday
 
Mostly sunny, with a high near 71.
Saturday Night
 
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 49.
Sunday
 
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 72.
Sunday Night
 
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 49.
Monday
 
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 70.
Monday Night
 
Mostly cloudy, with a low around 49.
Tuesday
 
A slight chance of showers. Partly sunny, with a high near 68.
Tuesday Night
 
A chance of showers. Mostly cloudy, with a low around 52.
Wednesday
 
Showers likely. Mostly cloudy, with a high near 69.

 

Forecast from NOAA-NWS for 3 Miles NW San Diego-Rancho Bernardo CA.