Brownsville, Texas 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

173
FXUS64 KBRO 201116 AAA
AFDBRO

Area Forecast Discussion...UPDATED
National Weather Service Brownsville TX
516 AM CST Sat Dec 20 2025

...New AVIATION...

.KEY MESSAGES...
Updated at 512 AM CST Sat Dec 20 2025

- Unseasonably warm temperatures and dry weather is expected
  this weekend through next week.

- Patchy fog could develop overnight for the next few days,
  reducing visibilities on roads and at airports.

&&

.DISCUSSION...
Issued at 1000 PM CST Fri Dec 19 2025

High pressure building over central US will bring unseasonably warm
temperatures and dry weather through much of next week. Light winds
and mostly clear skies overnight will increase the potential for fog
to form in the early morning hours. Tonight, lows in the 50s will be
accompanied by fog. Widespread fog in the northern Ranchlands and
Hidalgo County, and areas of fog in the remainder of the CWA are
expected, with dense fog reducing visibilities to a quarter mile or
less possible. A Dense Fog Advisory is in effect from 3 AM to 9 AM
for the CWA except Islands, which will likely still experience
reduced visibility - just patchier than inland. Fog is expected to
clear mid to late morning as southerly winds become gusty to around
20-25kts. Another round of fog is possible Sunday morning. Monday
morning, there is a low (less than 20%) chance of rain primarily
along the coast with an offshore disturbance.

&&

.AVIATION...
(12Z TAFS)
Issued at 512 AM CST Sat Dec 20 2025

Currently LIFR conditions are impacting all TAF sites and are
expected to do so until mid-morning where the fog will finally
lift. This will allow for VFR conditions to persist over the
region and with winds gusting around 20 knots out of the
southeast as well. During the evening hours winds are expected to
diminish again. This in turn could allow for fog to redevelop
during the overnight hours and into the early morning hours
tomorrow.

&&

.MARINE...
Issued at 1000 PM CST Fri Dec 19 2025

Favorable conditions will persist through next week, with southerly
to onshore winds and slight seas. There is a low (20-30%) chance of
showers on Monday morning over the Gulf waters, otherwise, expect
dry conditions to prevail.

&&

.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE             83  69  85  69 /   0   0   0  20
HARLINGEN               86  65  86  66 /   0   0   0  10
MCALLEN                 87  66  88  69 /   0   0   0  10
RIO GRANDE CITY         87  59  86  62 /   0   0   0  10
SOUTH PADRE ISLAND      77  70  77  69 /   0   0  10  20
BAYVIEW/PORT ISABEL     82  67  83  67 /   0   0   0  20

&&

.BRO WATCHES/WARNINGS/ADVISORIES...
TX...Dense Fog Advisory until 9 AM CST this morning for TXZ248>255-
     351-353>355.

GM...None.
&&

$$

SHORT TERM...69
LONG TERM....69
AVIATION...64-Katz