textproduct: Brownsville/Rio Grande Valley

KEY MESSAGES

Updated at 1203 PM CDT Mon Oct 26 2026

- Mostly dry conditions expected though we could see daily low to medium chances of diurnally driven showers/thunderstorms.

- Temperatures will be near normal but increase late week into the 90s for most locations.

- A Coastal Flood Statement is in effect from 3pm-midnight today for the Lower Texas Coast beaches.

DISCUSSION

Issued at 1203 PM CDT Mon Oct 26 2026

Warm and mostly dry conditions are expected across region this week. A nearby shortwave and increased Gulf moisture will allow for daily low to medium (10-50%) chances of diurnally drives showers and thunderstorms through Wednesday, primarily along and east of I-69C. Thursday, rain chances remain in the forecast, but best chances will be along and west of I-69E due to excess moisture moving into northeastern Mexico and Texas from the remnants of Tropical Storm Vance, currently located off the Mexican Pacific coast. Rain chances taper off late week.

Temperatures will remain slightly above normal and slowly climb into the low to mid 90s by this weekend. Overnight lows will be in the mid 60s to low 70s for much of the week, with lows in the 70s by late week into the weekend.

Easterly flow across the Gulf increases the threat of rip currents this week. Additionally, astronomical tides will narrow beaches during high tide cycles each afternoon and evening. A Coastal Flood Statement is in effect today from 3 PM until midnight and additional Coastal Flood Statements may be needed over the next day or two.

AVIATION

(18Z TAFS) Issued at 1203 PM CDT Mon Oct 26 2026

VFR conditions will prevail through the TAF period. Easterly winds will remain light and become more southeasterly on Tuesday.

MARINE

Issued at 1203 PM CDT Mon Oct 26 2026

Slightly adverse marine conditions are expected today, mainly on the offshore Gulf waters, due to slighlty elevated seas. Otherwise, favorable conditions will prevail with light winds, seas of 4 to 5 ft, and 7 to 8 second periods. Isolated showers and thunderstorms this week could lead to localized areas of increased winds and seas.

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 72 86 72 87 / 20 40 0 30 HARLINGEN 69 86 69 88 / 20 40 10 30 MCALLEN 71 89 71 91 / 0 30 10 30 RIO GRANDE CITY 69 90 69 91 / 0 10 10 20 SOUTH PADRE ISLAND 72 80 74 81 / 40 50 10 30 BAYVIEW/PORT ISABEL 70 83 70 85 / 30 30 10 30

BRO WATCHES/WARNINGS/ADVISORIES

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