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La Mirada, California 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for 3 Miles NNW Fullerton Municipal CA
National Weather Service Forecast for: 3 Miles NNW Fullerton Municipal CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 2:44 pm PDT Jul 12, 2025
 
This
Afternoon
This Afternoon: Sunny, with a high near 81. South southwest wind around 10 mph, with gusts as high as 15 mph.
Sunny
Tonight

Tonight: Patchy fog after 11pm.  Otherwise, increasing clouds, with a low around 64. Southwest wind 5 to 10 mph becoming light west southwest  after midnight. Winds could gust as high as 15 mph.
Patchy Fog
Sunday

Sunday: Patchy fog before 11am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 83. Light west southwest wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Patchy Fog
then Sunny
Sunday
Night
Sunday Night: Patchy fog after 11pm.  Otherwise, increasing clouds, with a low around 63. Southwest wind 5 to 10 mph becoming light  in the evening. Winds could gust as high as 15 mph.
Patchy Fog
Monday

Monday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 82. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Patchy Fog
then Sunny
Monday
Night
Monday Night: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 63.
Patchy Fog
Tuesday

Tuesday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 80.
Patchy Fog
then Sunny
Tuesday
Night
Tuesday Night: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 62.
Patchy Fog
Wednesday

Wednesday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 80.
Patchy Fog
then Sunny
Hi 81 °F Lo 64 °F Hi 83 °F Lo 63 °F Hi 82 °F Lo 63 °F Hi 80 °F Lo 62 °F Hi 80 °F

 

This Afternoon
 
Sunny, with a high near 81. South southwest wind around 10 mph, with gusts as high as 15 mph.
Tonight
 
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 64. Southwest wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 15 mph.
Sunday
 
Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 83. Light west southwest wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Sunday Night
 
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 63. Southwest wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 15 mph.
Monday
 
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 82. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Monday Night
 
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 63.
Tuesday
 
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 80.
Tuesday Night
 
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 62.
Wednesday
 
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 80.
Wednesday Night
 
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 61.
Thursday
 
Patchy fog. Otherwise, mostly sunny, with a high near 81.
Thursday Night
 
Patchy fog. Otherwise, mostly cloudy, with a low around 62.
Friday
 
Patchy fog. Otherwise, mostly sunny, with a high near 83.

 

Forecast from NOAA-NWS for 3 Miles NNW Fullerton Municipal CA.

Weather Forecast Discussion
543
FXUS66 KLOX 122147
AFDLOX

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
247 PM PDT Sat Jul 12 2025

.SYNOPSIS...12/948 AM.

Night through morning low clouds and patchy fog will affect the
coasts and lower valleys into next week. Max temperatures will
cool today and will end up several degrees below normal. There
will be continued cooling through the middle of next week with
valley highs on Tuesday only in the 80s.

&&

.SHORT TERM (TDY-TUE)...12/242 PM.

Very minimal day to day changes are expected in the short term. A
594 dam high will hang out over the region for the next few days,
though any warming affect that it typically would have will be
limited thanks to the moderate to strong onshore flow each day.
The LAX-DAG (easterly) gradient, will be around 9mb each
afternoon, while the LAX-BFL (northerly) gradient will be around
6 mb each afternoon.

Max temperatures each day through Monday will mostly be in the
60s-70s across the coasts, with 80s and lower 90s in the valleys.
These max temps are mostly 3 to 6 degrees below normal for this
time of year. The Antelope Valley, however, will continue near
100 degrees each day (5 degrees above normal), as it is mainly
free from the cooling marine influence. As for Tuesday, the high
pressure starts to break down, and a few degrees of cooling will
result across the region.

With how strong the onshore gradients are, coupled with a strong
inversion overtop, night through morning clouds each day will be
slow to burn off, and may not even clear from west facing beaches.
Otherwise, clouds will come flying back in during the late
afternoon/early evening timeframe.

Lastly the strong north push will bring gusty winds to the
interior each afternoon and evening, especially the western
Antelope Valley and foothills. Wind speeds will be close to
advisory levels but likely just under with a few of the typical
gusty locations seeing gusts to 45 mph.

.LONG TERM (WED-SAT)...12/246 PM.

The strong onshore flow will continue through Thursday, and may
even become a mb stronger, before starting to weaken thursday
night through Friday. Conditions on Wednesday and Thursday will
be very similar, with temps not changing much from Tuesday. The
night through morning low clouds and fog will continue unabated
and the beaches will continue to struggle with clearing.

The strong onshore flow will continue to bring gusty (likely
advisory level) winds to some of the mountains as well as the
western portions of the Antelope Valley and foothills.
Additionally, the gusty winds across the mountains and interior
along with fairly warm temperatures and fairly low humidities
through Tuesday, will bring an uptick in fire weather danger.

Thursday evening, both the GFS and EC and show a significant
increase in moisture at 700 mb and above advecting in from the
SSE. Additionally, a portion of ensemble members from the GFS and
EC are showing PWATs of 0.8 to 1.1 at KPMD, starting Thursday
evening through Sunday. Skies may turn partly cloudy. As of now,
there is a 5 to 10 percent chance for high based monsoonal
thunderstorms during the afternoon and evening hours Thursday
through Sunday.

&&

.AVIATION...12/1759Z.

At 1729Z at KLAX, the marine layer was 2400 ft deep. The top of
the inversion was near 4700 feet with a max temperature of 23 C.

High confidence in VFR TAFs for KWJF and KPMD.

Moderate confidence in remaining TAFs. Lower confidence in time of
clearing today for coastal sites south of Point Concpetion (+/- 2
hours). There is a 30% chance of no clearing at site with VFR
conds fcst, and a 30% chance for clearing for sites with low
clouds through the period. Return of cigs tonight may also be off
+/- 2 hours, but high confidence in low clouds returning, except
for KPRB, where there is a 30% chance for LIFR to IFR conds from
10Z to 17Z.

KLAX...Moderate confidence in TAF. There is a 30% chance for OVC-
BKN conds to continue through the period. Otherwise, clearing and
arrival times for cigs may be off by +/- 2 hours. Minimum cig
height may be off +/- 300 feet. No significant east wind component
expected.

KBUR...Moderate confidence in TAF. Arrival of cigs may be off +/-
2 hours. Minim cig height may be off +/- 200 feet.

&&

.MARINE...12/148 PM.

Localized Small Craft Advisory (SCA) W to NW winds may impact the
waters from near Point Conception south to the western Channel
Islands, and in southern Inner Waters from nearshore Point Mugu to
Pacific Palisades and into the San Pedro Channel Sunday afternoon
and evening. Otherwise, relatively benign conditions will
continue through at least the middle of next week.

Night to morning patchy dense fog is possible through at least
Monday.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.

&&

$$

PUBLIC...Lund
AVIATION...Lewis
MARINE...Lewis
SYNOPSIS...30

weather.gov/losangeles

Experimental Graphical Hazardous Weather Outlook at:
https://www.weather.gov/erh/ghwo?wfo=lox
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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