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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: 147 PM CDT Fri Oct 30 2026
For More Weather Information:
10NM N Port Isabel TX
Marine Zone Forecast
Tonight
Southeast winds 5 to 10 knots, diminishing to around 5 knots early this morning. Light chop on the bay, diminishing to smooth early this morning.
Saturday
North winds around 5 knots, becoming northeast early in the afternoon, then increasing to 5 to 10 knots late in the afternoon. Smooth on the bay, increasing to light chop late in the afternoon.
Saturday Night
East winds 5 to 10 knots, diminishing to around 5 knots after midnight. Light chop on the bay, diminishing to smooth after midnight.
Sunday
East winds around 5 knots, increasing to 5 to 10 knots in the afternoon. Light chop on the bay.
Sunday Night
East winds 5 to 10 knots, becoming southeast after midnight. Light chop on the bay.
Monday
Southeast winds 5 to 10 knots, increasing to 10 to 15 knots late in the afternoon. Light chop on the bay, increasing to a moderate chop late in the afternoon.
Monday Night
Southeast winds 10 to 15 knots. A moderate chop on the bay.
Tuesday
South winds 5 to 10 knots, becoming east late in the afternoon. Light chop on the bay. A slight chance of showers and thunderstorms in the afternoon.
Tuesday Night
Northeast winds around 10 knots, becoming north in the late evening and overnight. Light chop on the bay. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight.
Wednesday
Northwest winds 10 to 15 knots. A moderate chop on the bay. A slight chance of showers early in the morning.
Wednesday Night
North winds 5 to 10 knots, becoming northwest after midnight. Light chop on the bay.
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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