textproduct: Brownsville/Rio Grande Valley

DISCUSSION

Issued at 1020 PM CST Wed Jan 28 2026

While a warming trend will continue into Thursday, overnight temperatures tonight will remain below normal. Winds shifting back to the southeast overnight will allow temperatures on Thursday to reach the low to mid 70s.

A cold front is expected to move through Thursday night into Friday morning which will once again bring cooler, below normal temperatures back to Deep South Texas and the Rio Grande Valley. While daytime highs will be in the 50s and 60s through the weekend, the main story will be the cold overnight temperatures. Friday night into Saturday morning temperatures will fall to near freezing across the Northern Ranchlands with a 10-30% chance of reaching the freezing mark. The best chance (50-80%) for freezing temperatures will be Saturday night into Sunday morning primarily across the Northern Ranchlands into the Upper Valley. There is a low chance (10- 20%) of a freeze Saturday night into early Sunday morning across the Low/Mid Valley. A gradual warming trend begins on Monday as low level southerly flow returns.

While the majority of the forecast period will remain rain-free, isolated showers are possible along and ahead of the front. Greatest chance for rainfall will be along the coast.

AVIATION

(06Z TAFS) Issued at 1020 PM CST Wed Jan 28 2026

VFR conditions are expected through the TAF period. Light northerly wind will turn southeasterly Thursday morning. Could see some brief MVFR conditions Thursday afternoon into the evening as cloud over increases and ceilings lower.

MARINE

Issued at 1020 PM CST Wed Jan 28 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 with Small Craft Exercise Caution to Small Craft Advisory conditions expected in wake of the cold front on Friday. Rain chances increase Thursday night (20- 50%) as the front moves across the region.

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 51 73 53 63 / 0 0 20 0 HARLINGEN 44 73 46 63 / 0 0 10 0 MCALLEN 48 76 50 65 / 0 0 10 0 RIO GRANDE CITY 43 75 48 65 / 0 0 0 0 SOUTH PADRE ISLAND 57 69 55 62 / 0 10 30 0 BAYVIEW/PORT ISABEL 51 71 51 62 / 0 0 20 0

BRO WATCHES/WARNINGS/ADVISORIES

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