Monrovia, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

776
FXUS66 KLOX 230637
AFDLOX

Area Forecast Discussion...UPDATED
National Weather Service Los Angeles/Oxnard CA
1037 PM PST Sun Feb 22 2026

.SYNOPSIS...22/703 PM.

High pressure will bring warming to the area through Tuesday with
mostly clear to partly cloudy skies. By Tuesday high temperatures
will be 8 to 12 degrees above normal. Additional warming Thursday
and Friday will bring high temperatures across the valleys and
some interior coastal areas into the 80s.

&&

.SHORT TERM (SUN-WED)...22/816 PM.

***UPDATE***

No significant changes were made. The forecast remains on Track.

***From Previous Discussion***

High pressure building in and weak offshore flow will combine
today to bring sunny skies with max temperatures in the mid 60s
to mid 70s across the csts/vly.

582 dam hgts and 2 to 4 mb of offshore flow will bring another 3
to 6 degrees of warming to the area into Monday, despite an
increase in mid and high level clouds. Almost all cst/vly high
temps will be in the 70s with a smattering of 80-82 degree
readings in the warmest vly locations. These max temps are mostly
6 to 12 degrees over normal.

The offshore flow weakens considerably on Tuesday. Low clouds are
forecast to push into the Central Coast a little disturbance moves
overhead. Aside from the low clouds skies will likely remain
partly cloudy. While the weaker offshore flow will bring slight
cooling the coasts (max temps will remain well above normal), the
interior and esp the Antelope Vly will see additional warming.

On Tuesday night there is just the barest of a chance of light
rain across the far northern portion of SLO county.

.LONG TERM (THU-SUN)...22/157 PM.

The area will remain under a ridge emanating from 589 dam upper
high about 600 miles to south for the entire xtnd period. There
will not be much of a sfc gradient push in either direction E or W
but there will be a pretty steady offshore push from the N.

The weak flow in the E/W direction will allow for some morning low
clouds each morning. There will also be some clouds pushing
through the ridge bring partly-mostly cloudy skies to the area at
time esp north of Pt Concpetion.

The offshore push from the north may bring some gusty winds to the
N/S passes, potentially approaching advisory levels on Wednesday.

Temps are what everyone will be talking about. Wednesday will have
similar temps compared to Tuesday with highs mostly in the 70s and
a few 80 or 81 degree readings across the csts/vlys. The ridge
will strengthen some Thu and Fri and this will lead to 2 to 3
degrees of warming each day for almost all the area. Friday`s
highs will be 10 to 15 degrees over normal with cst/vly highs in
the upper 60s at the beaches, the 70s and lower 80s across the
csts and in the 80s to near 90 in the vlys. Saturday will see
little change in these very warm values.

Below normal precipitation and above normal temperatures are
favored to continue into next week (March 2-8).

&&

.AVIATION...23/0630Z.

At 0520Z at KLAX, there was no marine layer. There was a sfc based
inversion with a top of 1800 ft and a temperature of 19 C.

Overall, high confidence in TAFs.

KLAX...High confidence in TAF. Any east wind component is
expected to remain below 7 kts.

KBUR...High confidence in TAF.

&&

.MARINE...22/709 PM.

Moderate to high confidence in the current forecast. Higher
confidence exists in seas. Less confidence in winds.

For the waters southwest through northwest of the Channel Islands
and the nearshore waters along the Central Coast, there is a
moderate to high chance of Small Craft Advisory (SCA) level winds
each day through late Wednesday night, highest from near Point
Conception south to San Nicolas Island. The strongest winds
are expected to Wednesday afternoon and evening.

Inside the southern California bight, local SCA level gusts may
occur for brief periods this evening. Otherwise, winds and seas
should remain below SCA levels through at least Tuesday morning.
From Tuesday afternoon and onward, there is a moderate to high
chance of SCA levels winds, highest across the western portions of
the bight.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...Small Craft Advisory in effect until 9 AM PST Monday for
      zones 673-676. (See LAXMWWLOX).

&&

$$

PUBLIC...Munroe/Rorke/DB
AVIATION...Rorke
MARINE...Gomberg/Hall/CC
SYNOPSIS...30

weather.gov/losangeles

Experimental Graphical Hazardous Weather Outlook at:
https://www.weather.gov/erh/ghwo?wfo=lox