textproduct: Brownsville/Rio Grande Valley

KEY MESSAGES

Updated at 1105 AM CST Thu Nov 27 2025

* A cold front will move through Deep South Texas Saturday night/early Sunday bringing much cooler air to the region.

* Rain chances will increase this weekend and into early next week.

* Dangerous surf and marine conditions will return Friday and Saturday ahead of a cold front.

DISCUSSION

Issued at 1105 AM CST Thu Nov 27 2025

Fall like conditions (Deep South Texas style) have returned just in time for Thanksgiving. Highs today and tomorrow will be in the mid to upper 70s, with a few low 80s in the lower Valley. Temperatures begin to increase again this weekend as south/southeasterly flow returns ahead of the next system. Temperatures Friday and Saturday will rise into the mid 80s. Winds will also pick up as the gradient increases Friday into Saturday, mainly along the coast. This will lead to elevated rip currents at area beaches.

The next cold front will move through Saturday night/early Sunday resulting in much cooler weather through the middle of next week. Highs will be in the low 60s across the Ranchlands to mid 70s in the lower Valley for Sunday, with temperatures in the upper 50s to upper 60s for highs on Monday. Overnight temperatures take a bit of a nosedive with 40s and low 50s expected Sunday night though Tuesday night. Temperatures will slowly increase through next week.

The cold front will also bring an increasing chance of rain. Low chances (10-20%) mainly along the coast, are forecast for Friday into Saturday. Low to medium (20-60%) chances are expected on Sunday across the CWA with chances tapering off through the rest of the week.

Happy Thanksgiving!

AVIATION

(18Z TAFS) Issued at 1105 AM CST Thu Nov 27 2025

VFR conditions will prevail through the TAF period. Northeasterly winds will gust up to 20 kts today before decreasing this evening. Breezy conditions will return for Friday afternoon ahead of an approaching cold front.

MARINE

Issued at 1105 AM CST Thu Nov 27 2025

Generally favorable conditions have returned to the waters off the lower Texas coast. Adverse marine conditions return on Friday in response to another approaching cold front and Small Craft Advisories have been issued for Friday afternoon through Saturday afternoon for all waters. The front is expected to move through on Sunday with conditions gradually improving Saturday night. Isolated showers and thunderstorms are expected through the period that will bring locally enhanced winds and seas.

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 79 67 79 71 / 0 0 20 10 HARLINGEN 79 62 79 66 / 0 0 20 10 MCALLEN 79 66 79 69 / 10 0 10 0 RIO GRANDE CITY 76 64 78 66 / 10 10 20 0 SOUTH PADRE ISLAND 76 72 77 73 / 0 0 20 20 BAYVIEW/PORT ISABEL 79 67 78 68 / 0 0 20 10

BRO WATCHES/WARNINGS/ADVISORIES

TX...None. GM...None.