textproduct: Brownsville/Rio Grande Valley

KEY MESSAGES

Updated at 1213 AM CDT Thu May 28 2026

* Warm and dry conditions will prevail into the weekend.

* Rain chances return early to mid next week.

DISCUSSION

Issued at 1039 PM CDT Wed May 27 2026

Ridging building overhead will support a mostly dry pattern into this weekend. Temperatures will hang below average for late May with highs slowly climbing to the mid 90s, with heat indices in the upper 90s (Rio Grande Plains, Ranchlands west of I69C) to mid 100s (RGV). Minor heat risk will build to Moderate into the weekend, with pockets of Major in the RGV. Be sure to practice heat safety this weekend, as risk of heat related illness will be elevated.

Rain chances are mostly low (10% or less) through the rest of the week into the weekend. Showers along the seabreeze Thursday are possible. Rain chances look to increase again early to mid next week.

AVIATION

(06Z TAFS) Issued at 1213 AM CDT Thu May 28 2026

MVFR to VFR will prevail at the aerodromes through the next 24 hours. A TEMPO has been included in the TAFs for the possibility of light fog produced by widespread rain-wetted soils and light winds.

MARINE

Issued at 1039 PM CDT Wed May 27 2026

Southerly to onshore gentle to moderate flow with slight seas will prevail through the period. Rain chances remain low (less than 10%) through the weekend, increasing again early to mid next week.

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 91 77 92 78 / 10 0 0 0 HARLINGEN 90 73 92 74 / 10 0 0 0 MCALLEN 93 76 95 77 / 10 0 0 0 RIO GRANDE CITY 93 75 95 76 / 0 0 0 0 SOUTH PADRE ISLAND 85 79 85 81 / 10 0 0 0 BAYVIEW/PORT ISABEL 88 76 89 77 / 10 0 0 0

BRO WATCHES/WARNINGS/ADVISORIES

None.