textproduct: Brownsville/Rio Grande Valley

KEY MESSAGES

Updated at 1145 AM CST Tue Jan 27 2026

- Temperatures will gradually warm up during the week across the region.

- A cold front will arrive late Thursday night into Friday, ushering in below normal temperatures Friday into the weekend.

- Subfreezing temperatures cannot be ruled out once again this weekend, particularly across the Northern Ranchlands.

DISCUSSION

Issued at 1145 AM CST Tue Jan 27 2026

A generally pleasant week is in store across Deep South Texas, with mostly rain-free conditions and near to below normal temperatures in store. Temperatures will gradually warm into the low to mid 70s by Thursday, with low temperatures ranging from the upper 30s across the Northern Ranchlands to upper 40s and low 50s across the Rio Grande Valley. A cold front is expected to approach the region by late Thursday night or Friday, ushering in below normal temperatures Friday and through the weekend. The latest guidance is trending slightly drier than previous runs, but low precipitation chances (20-30%) remain in the forecast Thursday night into Friday primarily along the immediate coast, and low to medium rain chances (20-50%) across the Gulf waters. Otherwise, there is a potential for a freeze this weekend once again, with the best chances currently across the Northern Ranchlands. Adverse beach/marine conditions are likely along the Lower Texas beaches and Gulf waters Friday through the weekend.

AVIATION

(18Z TAFS) Issued at 1145 AM CST Tue Jan 27 2026

VFR and generally light winds below 10 knots will prevail through the forecast period at all TAF sites. There is a low potential for MVFR ceilings at BRO and HRL after 09Z, but confidence remains too low to warrant a mention with this issuance.

MARINE

Issued at 1145 AM CST Tue Jan 27 2026

Generally favorable marine conditions will prevail through Thursday evening with light winds and low seas. A cold front is expected to arrive late Thursday night into Friday. Small Craft Exercise Caution to Small Craft Advisory conditions are expected in wake of the cold front as northerly wins increase and seas become elevated. Rain chances increase Thursday night as the front moves across the region, with rain chances ranging from 20-50%.

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 49 68 50 74 / 10 0 0 0 HARLINGEN 42 67 45 73 / 0 0 0 0 MCALLEN 45 69 48 75 / 0 0 0 0 RIO GRANDE CITY 38 68 41 74 / 0 0 0 0 SOUTH PADRE ISLAND 56 64 58 70 / 10 0 0 10 BAYVIEW/PORT ISABEL 49 66 51 73 / 10 0 0 10

BRO WATCHES/WARNINGS/ADVISORIES

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