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Aliso Viejo, California 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Aliso Viejo CA
National Weather Service Forecast for: Aliso Viejo CA
Issued by: National Weather Service San Diego, CA
Updated: 12:57 pm PDT Jun 26, 2025
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 73. Southwest wind around 10 mph.
Mostly Sunny

Tonight

Tonight: Patchy fog after 8pm.  Otherwise, increasing clouds, with a low around 59. Southwest wind around 5 mph becoming calm  in the evening.
Patchy Fog

Friday

Friday: Patchy fog before 11am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 76. Light south wind becoming southwest 5 to 10 mph in the morning.
Patchy Fog
then Mostly
Sunny
Friday
Night
Friday Night: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 60. South wind around 5 mph becoming calm  in the evening.
Patchy Fog

Saturday

Saturday: Patchy fog before 11am.  Otherwise, sunny, with a high near 79. Light west wind increasing to 5 to 10 mph in the afternoon.
Patchy Fog
then Sunny
Saturday
Night
Saturday Night: Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 61.
Patchy Fog

Sunday

Sunday: Sunny, with a high near 78.
Sunny

Sunday
Night
Sunday Night: Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 59.
Patchy Fog

Monday

Monday: Patchy fog before 11am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 76.
Patchy Fog
then Sunny
Hi 73 °F Lo 59 °F Hi 76 °F Lo 60 °F Hi 79 °F Lo 61 °F Hi 78 °F Lo 59 °F Hi 76 °F

 

This Afternoon
 
Mostly sunny, with a high near 73. Southwest wind around 10 mph.
Tonight
 
Patchy fog after 8pm. Otherwise, increasing clouds, with a low around 59. Southwest wind around 5 mph becoming calm in the evening.
Friday
 
Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 76. Light south wind becoming southwest 5 to 10 mph in the morning.
Friday Night
 
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 60. South wind around 5 mph becoming calm in the evening.
Saturday
 
Patchy fog before 11am. Otherwise, sunny, with a high near 79. Light west wind increasing to 5 to 10 mph in the afternoon.
Saturday Night
 
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 61.
Sunday
 
Sunny, with a high near 78.
Sunday Night
 
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 59.
Monday
 
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 76.
Monday Night
 
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 59.
Tuesday
 
Patchy fog. Otherwise, mostly sunny, with a high near 76.
Tuesday Night
 
Patchy fog. Otherwise, partly cloudy, with a low around 59.
Wednesday
 
Patchy fog. Otherwise, mostly sunny, with a high near 76.

 

Forecast from NOAA-NWS for Aliso Viejo CA.

Weather Forecast Discussion
783
FXUS66 KSGX 262040
AFDSGX

Area Forecast Discussion
National Weather Service San Diego CA
140 PM PDT Thu Jun 26 2025

.SYNOPSIS...
For the coast and valleys, slow warming will continue into
Saturday followed by slow cooling into Tuesday. For the deserts,
slow warming will continue into Tuesday. Highs on the warmest days
will be around 5 degrees above normal. The marine layer will
mostly fluctuate between 1500 and 2000 feet deep with night and
morning coastal low clouds spreading into the western valleys late
each night.

&&

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

Low clouds have cleared off the Orange County beaches this
afternoon, but remain stuck at the San Diego County Beaches.
Elsewhere skies were mostly clear aside from smoke from a wildfire
in Mexico across far southeastern San Diego County. High
temperatures for most areas are running around 2-5 degrees higher
than this time yesterday, with the low deserts being an exception
thanks to southeasterly flow and higher dewpoints keeping
temperatures similar to yesterday.

Upper level high pressure will gradually build in from the
southeast through Saturday, continuing the warming trend for all
areas. By Saturday, high temperatures will be near to about 5
degrees above normal across the region. The marine layer will
become more shallow, with low clouds becoming confined to the
coastal areas and western valleys each night and morning.
Ensembles are showing some increase in mid-level moisture Saturday
afternoon and Sunday as the upper high becomes centered near the
Four Corners, but at this time it only looks like enough for some
cumulus development over the mountains each afternoon.

A weak upper level low pressure system off the California coast on
Saturday will move slowly eastward to a position along the
California coast on Tuesday. This will bring slight cooling to the
coast and valleys for Sunday through Tuesday while the deserts
continue to slowly warm through Monday with not much change
for Tuesday. For Tuesday, high temperatures will range from the
lower 70s near the coast to the mid 80s to mid 90s for the Inland
Empire with 108 to 112 for the lower deserts.

&&

.AVIATION...
262100....Coast/Valleys...SCT-BKN low clouds based 1000-1500ft MSL
are forming along the immediate coastline. This layer will push
inland again tonight generally after 03z Fri with bases lowering to
800-1200ft MSL. Clouds will initially only make it 15-20 miles
inland, though they could sneak into western portions of the IE
between 10-12z Fri. Chance for CIG`s overnight have increased to 60%
chance at KONT. VIS reductions 2-5SM for western inland valleys,
western IE and higher coastal terrain. Locally lower VIS possible
between 09-13z. Clearing to the coast 15-18z.

.Mountains/Deserts...Clear skies with unrestricted VIS through
Friday afternoon.

&&

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

&&

.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...Westerink
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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