National Weather Service Forecast for: 3 Miles S Spring Valley CA
Issued by: National Weather Service San Diego, CA
Updated: 12:18 am PDT Sep 13, 2026
 
Overnight

Overnight: Mostly cloudy, with a low around 66. Calm wind.
Mostly Cloudy
 Sunday

Sunday: Partly sunny, then gradually becoming sunny, with a high near 81. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Becoming
Sunny
 Sunday
Night
Sunday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 64. Southwest wind around 5 mph becoming calm in the evening.
Patchy Fog
 Monday

Monday: Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 79. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Patchy Fog
then Sunny
 Monday
Night
Monday Night: Partly cloudy, with a low around 61. Southwest wind around 5 mph becoming southeast after midnight.
Partly Cloudy
 Tuesday

Tuesday: Sunny, with a high near 82.
Sunny
 Tuesday
Night
Tuesday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 60.
Patchy Fog
 Wednesday

Wednesday: Patchy fog before 11am. Otherwise, sunny, with a high near 83.
Patchy Fog
then Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 61.
Mostly Clear
Lo 66 °F Hi 81 °F Lo 64 °F Hi 79 °F Lo 61 °F Hi 82 °F Lo 60 °F Hi 83 °F Lo 61 °F

 

Overnight
 
 Mostly cloudy, with a low around 66. Calm wind.
Sunday
 
 Partly sunny, then gradually becoming sunny, with a high near 81. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
 
 Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 64. Southwest wind around 5 mph becoming calm in the evening.
Monday
 
 Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 79. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
 
 Partly cloudy, with a low around 61. Southwest wind around 5 mph becoming southeast after midnight.
Tuesday
 
 Sunny, with a high near 82.
Tuesday Night
 
 Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 60.
Wednesday
 
 Patchy fog before 11am. Otherwise, sunny, with a high near 83.
Wednesday Night
 
 Mostly clear, with a low around 61.
Thursday
 
 Sunny, with a high near 80.
Thursday Night
 
 Mostly clear, with a low around 62.
Friday
 
 Sunny, with a high near 83.
Friday Night
 
 Mostly clear, with a low around 64.
Saturday
 
 Sunny, with a high near 87.

 

Forecast from NOAA-NWS for 3 Miles S Spring Valley CA.