textproduct: Brownsville/Rio Grande Valley

KEY MESSAGES

Updated at 1212 PM CDT Sat Oct 31 2026

- Isolated minor coastal flooding is possible at local beaches near high tide through 7 AM Sunday.

- Dry, hot conditions expected through Halloween weekend.

- Cold front early next week will bring cooler temperatures and a brief chance of rain, mainly near the coast.

DISCUSSION

Issued at 1212 PM CDT Sat Oct 31 2026

Above normal temperatures and mostly dry conditions are expected for Halloween festivities and Sunday into early Tuesday. A potent low pressure system swings through the Southern Plans Monday into Tuesday, kicking up a warm and breezy Monday, before sending a cold front through Deep South Texas on Tuesday with cooler temperatures and a brief medium (30-40 percent) chance of rain into Wednesday. Near normal temperatures are expected Thursday into the weekend. Another frontal boundary attempts a southern run late Friday through Saturday, with another brief low to medium (20-30 percent) chance of rain Friday and Saturday. Overall, rather seasonal conditions are expected to kick off the first week of November.

Persistent easterly flow across the Gulf and elevated astronomical tides continue to narrow beaches during high tide cycles through the weekend with conditions expected to improve Sunday into Monday. A Coastal Flood Statement is in effect through tonight. Patchy to dense fog developed last night across the ranchlands and may develop again tonight with light to near calm winds. Cloud cover may prevent any dense fog from developing or settling in.

AVIATION

(18Z TAFS) Issued at 1212 PM CDT Sat Oct 31 2026

VFR conditions are expected to generally prevail through the TAF period, with a southeasterly breeze this afternoon and patchy fog expected late tonight.

MARINE

Issued at 1212 PM CDT Sat Oct 31 2026

Marine conditions continue to improve through the remainder of this weekend into early next week. Breezy winds across the bay may bring a brief period of Small Craft Caution conditions Monday afternoon. A cold front on Tuesday with breezy northerly winds may also kick up occasional SCEC conditions across the Gulf. Light onshore flow returns late week with another frontal boundary possible next weekend. The best chance of showers or isolated thunderstorms occurs with the frontal passage Tuesday evening through Tuesday night.

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 73 88 73 89 / 0 10 0 0 HARLINGEN 70 89 70 91 / 0 0 0 0 MCALLEN 74 93 74 95 / 0 0 0 0 RIO GRANDE CITY 71 92 72 95 / 0 0 0 0 SOUTH PADRE ISLAND 76 82 76 83 / 0 10 0 0 BAYVIEW/PORT ISABEL 72 85 71 87 / 0 0 0 0

BRO WATCHES/WARNINGS/ADVISORIES

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