textproduct: Brownsville/Rio Grande Valley

KEY MESSAGES

Updated at 518 PM CST Tue Nov 3 2026

- Two cold fronts expected this week.

- Above normal temperatures expected today, potentially record breaking, before cooler air arrives.

- Low to medium rain chances expected through much of the period.

DISCUSSION

Issued at 1113 AM CST Tue Nov 3 2026

One of two cold fronts will move through Deep South Texas later today into tonight. Unseasonably warm temperatures are expected today with highs in the upper 80s to mid 90s. Compressional heating ahead of the front could lead to potential record breaking temperatures in the mid to lower Valley this afternoon. As the front pushes through, rain chances will increase from west to east. Highest rain chances will be along the coast early Wednesday morning.

Temperatures on Wednesday will be near normal with dry conditions before another cold front moves through late Thursday/early Friday. This secondary front will increase rain chances once again Thursday through the weekend. Temperatures will be much cooler beginning Friday with highs in the 80s and by this weekend mid to upper 70s and possibly a few low 80s. Overnight temperatures will fall into the 50s across much of the area by Saturday night.

AVIATION

(00Z TAFS) Issued at 518 PM CST Tue Nov 3 2026

Through 00z Thursday....By and large, VFR conditions are expected to prevail through the 00z TAF cycle. There could be a few MVFR clouds around at times. A few showers are possible this evening/night in response to a cool front that's currently pushing through the area. Have VCSH for the terminals to acknowledge the potential for showers this evening/tonight.

Winds will shift out of the north this evening as the aforementioned cool front pushes through the region. Winds will continue out of the north-northeast with speeds between 5-10 knots through the remainder of the 00z TAF period.

MARINE

Issued at 1113 AM CST Tue Nov 3 2026

Generally favorable conditions will prevail through much of the week. A cold front later today will bring chances of rain and thunderstorms that could lead to locally enhanced winds and seas. Another cold front moving through late week will lead to more hazardous conditions with Small Craft Advisories likely needed this weekend. Additional showers and thunderstorms are expected Thursday through the weekend that could contribute to adverse marine conditions.

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 71 83 72 89 / 50 10 0 10 HARLINGEN 67 82 68 90 / 40 10 0 10 MCALLEN 69 86 71 94 / 20 0 0 10 RIO GRANDE CITY 64 85 67 90 / 0 0 0 0 SOUTH PADRE ISLAND 74 78 74 83 / 60 10 0 10 BAYVIEW/PORT ISABEL 70 80 70 87 / 50 10 0 10

BRO WATCHES/WARNINGS/ADVISORIES

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