Last Update: 1228 AM CDT Thu Sep 18 2025

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Brownsville, TX Local Forecast Office

7NM ESE Port Mansfield TX

Marine Zone Forecast


Today
East winds 5 to 10 knots, increasing to 10 to 15 knots this afternoon. A moderate chop on the bay. A slight chance of thunderstorms this morning. A chance of showers. A chance of thunderstorms this afternoon.
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 in the morning.
Friday
Northeast winds 5 to 10 knots. Light chop on the bay. A slight chance of showers early in the morning, then a chance of showers in the afternoon. A chance of thunderstorms in the afternoon.
Friday Night
East winds 5 to 10 knots, becoming southeast after midnight. Light chop on the bay. A slight chance of thunderstorms.
Saturday
East winds 5 to 10 knots. Light chop on the bay. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon.
Saturday Night
Southeast winds 5 to 10 knots, becoming around 5 knots early in the morning. Light chop on the bay, diminishing to smooth early in the morning. A chance of showers with a slight chance of thunderstorms early in the evening, then a slight chance of showers late in the evening. A chance of showers with a slight chance of thunderstorms after midnight.
Sunday
Southeast winds 5 to 10 knots. Light chop on the bay. A chance of showers and thunderstorms.
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.
Monday
Southeast winds 5 to 10 knots, becoming around 10 knots late in the afternoon. Light chop on the bay. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon.
Monday Night
Southeast winds 10 to 15 knots, becoming south early in the morning. A moderate chop on the bay, diminishing to light chop early in the morning. A chance of showers and thunderstorms early in the evening, then a slight chance of showers late in the evening. A chance of showers with 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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1228 AM CDT Thu Sep 18 2025
 
 

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