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- WE ARE HIRING: NWS Brownsville/Rio Grande Valley is officially hiring a GS-5/7/9 Meteorologist. Apply today at USAJobs!
- Severe to Extreme Conditions Remain for Parts of the RGV/Ranchlands Headed into Late October. Click Here for Details.
- October-December2026 Outlook - After a brutally hot and dry September, October brings the pattern change to wetter and less hot, with above average rainfall to close out 2026; flash flooding, water supply, & hazardous marine conditions in focus
Last Update: 208 PM CDT Sat Oct 24 2026
For More Weather Information:
10NM N Port Isabel TX
Marine Zone Forecast
Tonight
Southeast winds 10 to 15 knots. A moderate chop on the bay.
Sunday
East winds 10 to 15 knots. A moderate chop on the bay. A slight chance of showers late in the morning.
Sunday Night
East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Light chop on the bay.
Monday
East winds 5 to 10 knots. Light chop on the bay. A slight chance of showers. A slight chance of thunderstorms late in the afternoon.
Monday Night
East winds 5 to 10 knots, becoming southeast after midnight. Light chop on the bay. A chance of showers with a slight chance of thunderstorms.
Tuesday
Southeast winds 5 to 10 knots. Light chop on the bay. A slight chance of thunderstorms in the morning. Showers likely. A chance of thunderstorms in the afternoon.
Tuesday Night
Southeast winds 5 to 10 knots. Light chop on the bay. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms in the late evening and overnight.
Wednesday
East winds 5 to 10 knots. Light chop on the bay. A slight chance of showers and thunderstorms.
Wednesday Night
Southeast winds 5 to 10 knots. Light chop on the bay. A slight chance of showers and thunderstorms.
Thursday
Southeast winds 5 to 10 knots, becoming east 10 to 15 knots late in the afternoon. Light chop on the bay, increasing to a moderate chop late in the afternoon. A chance of showers with a slight chance of thunderstorms.
Thursday Night
Southeast winds 5 to 10 knots. Light chop on the bay. A chance of showers with a slight chance of thunderstorms early in the evening, then a slight chance of showers in the late evening and overnight.
winds and waves higher in and near thunderstorms.
winds and waves higher in and near thunderstorms.
Winds and waves higher in and near thunderstorms.
Additional Forecasts and Information
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