News Headlines
- WE ARE HIRING: NWS Brownsville/Rio Grande Valley is officially hiring a GS-5/7/9 Meteorologist. Apply today at USAJobs!
- Hot, Windy, and Rain-Free Weather Since Late June Brought on a Rapid-Onset Drought to Portions of the RGV in Early August
- August-October 2026 Outlook - Hotter Than Normal And Mainly Dry Conditions Are Expected To Continue; Could Turn Wetter Towards The Fall; Heat Risk, Drought, Fire Weather, And Water Supply Issues Remain In Focus
- Check Out the 2026 Rio Grande Valley/Deep South Texas Hurricane Guide
- Guia de Huracanes 2026 del Valle del Rio Grande/Extremo Sur de Texas
Last Update: 205 AM CDT Tue Aug 25 2026
For More Weather Information:
17NM NE Port Isabel TX
Marine Zone Forecast
Today
South winds 5 to 10 knots, becoming southeast early this afternoon, then increasing to 10 to 15 knots late this afternoon. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 4 seconds.
Tonight
Southeast winds 10 to 15 knots, becoming south after midnight. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 4 seconds.
Wednesday
South winds 5 to 10 knots, becoming southeast in the afternoon. Seas 1 to 2 feet. Wave detail: southeast 2 feet at 4 seconds.
Wednesday Night
Southeast winds 10 to 15 knots, becoming south after midnight. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 4 seconds.
Thursday
South winds 5 to 10 knots, diminishing to around 5 knots late in the morning, then becoming southeast in the afternoon. Seas 1 to 2 feet. Wave detail: southeast 2 feet at 4 seconds.
Thursday Night
Southeast winds around 10 knots, becoming south early in the morning. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 4 seconds.
Friday
South winds 5 to 10 knots, diminishing to around 5 knots late in the morning, then becoming southeast in the afternoon. Seas 1 to 2 feet.
Friday Night
Southeast winds around 10 knots, becoming south after midnight. Seas 2 to 3 feet.
Saturday
South winds around 5 knots, becoming southeast in the afternoon. Seas 1 to 2 feet. A slight chance of showers and thunderstorms in the afternoon.
Saturday Night
Southeast winds around 10 knots, becoming south after midnight. Seas 2 to 3 feet. A slight chance of showers and thunderstorms early in the evening.
winds and seas higher in and near thunderstorms.
winds and seas higher in and near thunderstorms.
Winds and seas higher in and near thunderstorms.
Additional Forecasts and Information
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