textproduct: Brownsville/Rio Grande Valley

KEY MESSAGES

Updated at 135 PM CDT Sat Jul 25 2026

- Seasonable temperatures through the weekend. A warming trend will result in widespread triple-digit temperatures and heat index values for most of next week. - Moderate heat risk through the weekend, increasing to major heat risk next week.

- A moderate risk of rip currents along the lower Texas beaches through Saturday evening.

DISCUSSION

Issued at 135 PM CDT Sat Jul 25 2026

Heat will be the main weather concern across Deep South Texas through next week as the region remains under the influence of ridging aloft. The rest of the weekend will feature temperatures close to seasonal normals for late July, with highs ranging from the mid to upper 90s to around 102 degrees. A warming trend begins heading into the work week, with triple-digit high temperatures expected across most of the region, with the exception being along the immediate coast and lower Texas beaches. This is around 3-6 degrees above normal for late July, and a few areas may tie or break daily record high temperatures and highest low temperatures as well. Persistent low level southerly to southeasterly flow will maintain elevated humidity across the region, and the combination of high humidity and above normal temperatures will result in heat index values ranging from 100-115 degrees each afternoon. Heat Advisories are likely each afternoon next week, with a few areas potentially reaching Extreme Heat Warning by mid week.

The combination of near-record temperatures and high humidity will result in a moderate (level 2 of 4) to major (level 3 of 4) heat risk next week. Warm overnight low temperatures will not allow for much recovery from the daytime heat and can result in an increased risk of heat-related illnesses. Continue to practice heat safety wear sunscreen, light-colored loose-fitting clothing, take frequent breaks in the shade or indoors, and stay hydrated!

AVIATION

(18Z TAFS) Issued at 135 PM CDT Sat Jul 25 2026

VFR will prevail through the forecast period at all TAF sites. Expect persistent southerly to southeasterly winds around 10-15 knots with occasional gusts up to 20 knots through the late evening hours. Winds should fall below 5 knots tonight, and increase once again by mid to late Sunday morning.

MARINE

Issued at 135 PM CDT Sat Jul 25 2026

Generally favorable marine conditions will continue through the weekend with light to moderate southeast winds and slight to moderate seas. An enhanced pressure gradient along the immediate coast will result in Small Craft Exercise Caution conditions along the Laguna Madre and nearshore Gulf waters daily during the late morning and early evening hours next week. Otherwise, expect rain- free conditions.

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 80 96 80 97 / 0 0 0 0 HARLINGEN 76 99 76 100 / 0 0 0 0 MCALLEN 79 102 79 104 / 0 0 0 0 RIO GRANDE CITY 77 102 77 104 / 0 0 0 0 SOUTH PADRE ISLAND 81 88 81 89 / 0 0 0 0 BAYVIEW/PORT ISABEL 78 94 78 95 / 0 0 0 0

BRO WATCHES/WARNINGS/ADVISORIES

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