textproduct: Brownsville/Rio Grande Valley

KEY MESSAGES

Updated at 1246 PM CDT Sat Jun 27 2026

* Hot conditions continue through the next week. Heat indices between 100 and 110 degrees will lead to Moderate (level 2 of 4) Heat Risk each day.

* Generally rain free conditions are expected, though could see some isolated sea breeze activity, mainly mid to late week.

* There is a Moderate Risk of life-threatning rip currents at area beaches, likely through much of the week.

DISCUSSION

Issued at 1246 PM CDT Sat Jun 27 2026

Hot and rain free conditions will prevail across Deep South Texas and the Rio Grande Valley into next week. A mid/upper high will remain overhead through early next week before beginning to lift northeast.

Temperatures will rise to the mid to upper 90s each day, with a few triple digits possible across the upper Valley/Rio Grande Plains. Heat indices will be generally between 100 and 110 degrees each day, thus no heat advisories are anticipated at this time. This will maintain a Moderate Heat Risk(level 2 of 4) each day over the next week.

Though we will remain generally rain free, as the aforementioned mid/upper level high begins to move northeast midweek bringing back low chances of sea breeze activity later in the week.

Breezy conditions will continue into early week due to an enhanced surface pressure gradient.

While the overall rip current risk is moderate through much of the week, strong longshore currents through the weekend can quickly push swimmers up the beach and into rip currents. For more information you can visit www.weather.gov/bro/surfmatrices.

AVIATION

(18Z TAFS) Issued at 1206 PM CDT Sat Jun 27 2026

VFR conditions will prevail through the TAF period. Southeasterly winds will remain breezy through tomorrow with gusts of 25 to 30 kts.

MARINE

Issued at 1246 PM CDT Sat Jun 27 2026

An enhanced surface gradient will lead to slightly adverse marine conditions through Monday. Small Craft will need to exercise caution on the Laguna Madre and Gulf waters with winds of 15-20 kts expected each day. Generally seas of 3 to 5 feet are expected with 6 second periods.|

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 82 94 81 94 / 0 0 0 0 HARLINGEN 79 96 79 96 / 0 0 0 0 MCALLEN 81 98 81 98 / 0 0 0 0 RIO GRANDE CITY 79 101 78 100 / 0 0 0 0 SOUTH PADRE ISLAND 82 88 82 87 / 0 0 0 0 BAYVIEW/PORT ISABEL 80 92 80 91 / 0 0 0 0

BRO WATCHES/WARNINGS/ADVISORIES

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