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Casa de Oro, California 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Spring Valley CA
National Weather Service Forecast for: Spring Valley CA
Issued by: National Weather Service San Diego, CA
Updated: 1:13 pm PDT Jul 27, 2025
 
Tonight

Tonight: Patchy fog.  Otherwise, mostly cloudy, with a low around 60. West wind around 5 mph becoming calm.
Patchy Fog
Monday

Monday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 80. Light northwest wind becoming west 5 to 10 mph in the morning.
Patchy Fog
then Sunny
Monday
Night
Monday Night: Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 61. West wind around 5 mph becoming calm  in the evening.
Patchy Fog
Tuesday

Tuesday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 84. Light northwest wind becoming west 5 to 10 mph in the morning.
Patchy Fog
then Sunny
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 62. West wind around 5 mph becoming calm  in the evening.
Mostly Clear
Wednesday

Wednesday: Sunny, with a high near 84.
Sunny
Wednesday
Night
Wednesday Night: Patchy fog after 11pm.  Otherwise, increasing clouds, with a low around 63.
Patchy Fog
Thursday

Thursday: Patchy fog before 11am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 82.
Patchy Fog
then Sunny
Thursday
Night
Thursday Night: Patchy fog after 11pm.  Otherwise, increasing clouds, with a low around 62.
Patchy Fog
Lo 60 °F Hi 80 °F Lo 61 °F Hi 84 °F Lo 62 °F Hi 84 °F Lo 63 °F Hi 82 °F Lo 62 °F

 

Tonight
 
Patchy fog. Otherwise, mostly cloudy, with a low around 60. West wind around 5 mph becoming calm.
Monday
 
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 80. Light northwest wind becoming west 5 to 10 mph in the morning.
Monday Night
 
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 61. West wind around 5 mph becoming calm in the evening.
Tuesday
 
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 84. Light northwest wind becoming west 5 to 10 mph in the morning.
Tuesday Night
 
Mostly clear, with a low around 62. West wind around 5 mph becoming calm in the evening.
Wednesday
 
Sunny, with a high near 84.
Wednesday Night
 
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 63.
Thursday
 
Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 82.
Thursday Night
 
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 62.
Friday
 
Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 83.
Friday Night
 
Patchy fog. Otherwise, increasing clouds, with a low around 62.
Saturday
 
Patchy fog. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 85.
Saturday Night
 
Patchy fog. Otherwise, increasing clouds, with a low around 63.
Sunday
 
Patchy fog. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 85.

 

Forecast from NOAA-NWS for Spring Valley CA.

Weather Forecast Discussion
558
FXUS66 KSGX 280418
AFDSGX

Area Forecast Discussion
National Weather Service San Diego CA
918 PM PDT Sun Jul 27 2025

.SYNOPSIS...
A warming trend will continue with high temperatures slightly
above normal by the middle of next week. Thursday and Friday will
be a few degrees cooler, with minor warming over the upcoming
weekend. Low clouds and fog will reach into portions of the
valleys each night and morning.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

Low clouds have moved back into the coastal areas of San Diego
County this evening after clearing nicely this afternoon. Clouds
will spread north into Orange County and into the western valleys
overnight. The 00Z KNKX sounding shows the marine inversion based
near 2200 ft MSL, but unlike previous nights, the marine layer is
not expected to deepen as upper level high pressure begins to
nudge in from the east. Elsewhere skies will remain mostly clear.

A gradual warming trend will take place through midweek as the
upper level high continues to expand westward into So Cal. High
temperatures will be around 5-10 degrees below normal in the
mountains and valleys on Monday and near normal elsewhere, warming
to near normal area-wide by Wednesday. For Tuesday and Wednesday,
NBM probabilities of high temperatures of 110 or more are around
30-50 percent, and in the Inland Empire the chance of 100 degrees
or more is around 20-30 percent in the typically hottest areas
between Lake Elsinore and Hemet. The marine layer becomes more
shallow through this period with night and morning low clouds and
fog generally confined to the coastal areas and far western
valleys.

Brief and very minor cooling takes place Thursday and Friday as a
weak trough lifts northeast across central CA into the Great
Basin. Ensembles are in generally good agreement with the high
restrengthening as the trough moves out for a minor warming trend
into the weekend. Uncertainty grows early next week with the
timing and amplitude of another trough potentially moving towards
the West Coast. Monsoon moisture remains nowhere to be found over
the next week.

&&

.AVIATION...
280300Z....Coasts/Valleys...Low clouds based 1100-1700 ft MSL over
coastal waters are starting to move into coastal San Diego County.
Clouds slowly push 15-20 miles inland over San Diego/Orange
Counties by 13z, but will likely (70% chance) remain out of the
Inland Empire. Scattering to the coast again Monday morning
16-18Z. Clouds based 900-1400 ft MSL slowly creep back into
coastal areas after 03z Tuesday.

Mountains/Deserts...Mostly clear with VFR conditions through Monday
evening.

&&

.MARINE...
No hazardous marine conditions are expected through Friday.

&&

.SKYWARN...
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.


&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...None.
PZ...None.

&&

$$

PUBLIC...SS
AVIATION/MARINE...KW
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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