Last Update: 1202 PM CDT Tue Sep 16 2025

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Brownsville, TX Local Forecast Office

10NM N Port Isabel TX

Marine Zone Forecast


Tonight
East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Light chop on the bay. A slight chance of showers and thunderstorms early this evening, then a chance of showers and thunderstorms late this evening and overnight.
Wednesday
East winds 5 to 10 knots. Light chop on the bay. Showers likely with a chance of thunderstorms.
Wednesday Night
Southeast winds 5 to 10 knots. Light chop on the bay. Showers likely in the evening. A chance of thunderstorms. A chance of showers after midnight.
Thursday
East winds 5 to 10 knots. Light chop on the bay. A chance of showers and thunderstorms.
Thursday Night
Southeast winds 5 to 10 knots. Light chop on the bay. A chance of showers and thunderstorms.
Friday
East winds 5 to 10 knots. Light chop on the bay. A chance of showers and thunderstorms.
Friday Night
East winds 5 to 10 knots. Light chop on the bay. A chance of showers.
Saturday
East winds 5 to 10 knots. Light chop on the bay. A chance of thunderstorms.
Saturday Night
Southeast winds 5 to 10 knots. Light chop on the bay. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight.
Sunday
Southeast winds around 5 knots, becoming 5 to 10 knots in the afternoon. Light chop on the bay. A chance of showers. A slight chance of thunderstorms early in the morning, then a chance of thunderstorms in the afternoon.
Sunday Night
Southeast winds around 10 knots, becoming south early in the morning. Light chop on the bay. A chance of thunderstorms in the evening. A chance of showers. A slight chance of thunderstorms after midnight.

winds and waves higher in and near thunderstorms.




Winds and waves higher in and near thunderstorms.
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1202 PM CDT Tue Sep 16 2025
 
 

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