Brownsville, Texas 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

833
FXUS64 KBRO 060451
AFDBRO

Area Forecast Discussion
National Weather Service Brownsville TX
1051 PM CST Fri Dec 5 2025

...New DISCUSSION, AVIATION, MARINE...

.KEY MESSAGES...
Updated at 1046 PM CST Fri Dec 5 2025

 - Periods of light rain and/or drizzle continue across Deep South
   Texas tonight, with rain chances forecast to decrease around
   sunrise.

 - Warmer temperatures are forecast this weekend. The arrival of a
   cold front Sunday afternoon will bring cooler temperatures to
   start the work week.

 - Adverse marine conditions are likely Sunday evening into Monday
   behind the passage of the cold front on Sunday.

&&

.DISCUSSION...
Issued at 1046 PM CST Fri Dec 5 2025

The overrunning pattern that has been dominate for the past
couple days looks to break down Saturday as the coastal trough
moves further offshore, and the 925-850mb flow shifts more
southwesterly. This pattern change will likely result in drier
low-level flow advecting into the region, likely decreasing cloud
cover slight Saturday afternoon, and decreasing the potential for
any light rain or drizzle. The decreased cloud cover will allow
high temperatures to increase to the 70s Saturday and into the 80s
on Sunday.

This pattern will further break down Sunday afternoon with the
arrival of a deep cold front. This front will likely usher in
mostly sunny to sunny skies and near zero rain chances for the
first half of next week. In addition, CAA behind the front will
likely drop low temperatures back to the mid 40s to low 50s Sunday
and Monday nights. High temperatures will likely range from the
60s to 70s Monday, gradually increasing to the 80s by mid week as
southeasterly winds return Tuesday.

&&

.AVIATION...
(06Z TAFS)
Issued at 1046 PM CST Fri Dec 5 2025

MVFR ceilings are forecast to continue overnight. Winds will
likely remain light and variable through the period. A band of
light rain is currently moving east through the area, and may
impact the airfields overnight. Impacts from this rainfall will
likely be minimal, though visibility may intermittently drop to
MVFR levels. Rain chances are expected to decrease around
sunrise, with ceilings forecast to lift and break through the
morning. VFR conditions are forecast to develop after sunrise and
continue through the remainder of the period.

&&

.MARINE...
Issued at 1046 PM CST Fri Dec 5 2025

Generally favorable marine conditions are expected Saturday and
Sunday morning. However, a cold front Sunday afternoon will likely
bring stronger winds and higher seas through Monday afternoon,
likely requiring a Small Craft Advisory for the Gulf waters and
Laguna Madre. Conditions look to begin improving Monday afternoon,
with generally favorable conditions forecast to return by Monday
night and continue through the remainder of the forecast.

&&

.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE             64  59  77  66 /  10  40  10  10
HARLINGEN               63  55  77  62 /  10  30  10  10
MCALLEN                 65  59  79  66 /   0  40  10  10
RIO GRANDE CITY         66  56  79  62 /   0  40  20   0
SOUTH PADRE ISLAND      66  64  74  70 /  10  40  20  10
BAYVIEW/PORT ISABEL     63  58  75  65 /  10  40  10  10

&&

.BRO WATCHES/WARNINGS/ADVISORIES...
TX...None.
GM...None.
&&

$$

SHORT TERM...60-BE
LONG TERM....60-BE
AVIATION...60-BE