textproduct: Brownsville/Rio Grande Valley

KEY MESSAGES

Updated at 1230 PM CST Mon Nov 2 2026

- Rain-free, hot, and at times breezy conditions into Tuesday with daytime high temperatures ranging between the upper 80s to mid 90s.

- A pair of cold front arrives Tuesday afternoon/evening and late this week/weekend, which will bring cooler temperatures and rain chances across portions of the region.

- Temperatures trend from seasonable to unseasonably cool Friday through next Monday (highs in the mid 70s to mid 80s).

DISCUSSION

Issued at 1230 PM CST Mon Nov 2 2026

Unseasonable warmth will continue into tomorrow across Deep South Texas, with high temperatures around 5-10 degrees above normal for early November. Afternoon high temperatures will range from the low to mid 90s, and in combination with the humidity, will result in heat index values in the upper 90s to around 100 degrees. Fortunately, the first of a pair of cold fronts is expected to approach Deep South Texas late tomorrow afternoon into tomorrow evening, ushering in some cooler and drier air. Low to medium rain chances (around 20-50%) may accompany the boundary as it translates across the region, mainly across the Northern Ranchlands and along the immediate coast late tomorrow afternoon and night.

In wake of the passage of the cold front, more seasonable temperatures are expected on Wednesday with highs in the low to mid 80s. A quick warm up is expected on Thursday with highs in the upper 80s and low 90s as low level southerly flow returns. However, the second of a pair of cold fronts is expected to reach Deep South Texas by Friday. The latest guidance indicates this boundary will exit the region by Friday morning, with increasing rain chances late this week and into the weekend. There are still discrepancies among guidance on the evolution and timing of this setup so check back for updates.

AVIATION

(18Z TAFS) Issued at 1230 PM CST Mon Nov 2 2026

VFR is expected to prevail through this afternoon, although brief periods of MVFR ceilings cannot be ruled out. Another round of MVFR ceilings are expected late tonight into early tomorrow, mainly near MFE. Otherwise, expect southerly winds through late Tuesday morning. Winds may begin to shift around 18Z as a cold front approaches, and adjustments to front timing is likely in subsequent TAFs.

MARINE

Issued at 1230 PM CST Mon Nov 2 2026

Generally favorable marine conditions are expected through the end of the week with low to moderate seas and light to moderate winds. The first of a pair of cold fronts arrives late tomorrow afternoon, which may result in periods of Small Craft Exercise Caution conditions tomorrow night into Wednesday. Another front approaches late this week into the weekend, which may bring Small Craft Advisory conditions over the Gulf waters and Laguna Madre, along with increasing rain chances.

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 77 91 71 83 / 0 10 50 10 HARLINGEN 74 93 68 83 / 0 20 40 10 MCALLEN 77 94 70 87 / 0 10 20 0 RIO GRANDE CITY 73 90 66 85 / 0 10 0 0 SOUTH PADRE ISLAND 78 84 73 79 / 0 10 70 10 BAYVIEW/PORT ISABEL 74 89 69 81 / 0 20 60 10

BRO WATCHES/WARNINGS/ADVISORIES

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