Last Update: 1120 AM CST Sun Jan 18 2026

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Brownsville, TX Local Forecast Office

10NM N Port Isabel TX

Marine Zone Forecast


Rest Of Today
North winds 5 to 10 knots, becoming northeast late this afternoon. Light chop on the bay.
Tonight
East winds around 5 knots, becoming south in the late evening and overnight. Smooth on the bay.
Monday
Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. A moderate chop on the bay.
Monday Night
Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots early in the morning. A moderate chop on the bay, diminishing to light chop early in the morning.
Tuesday
East winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. A moderate chop on the bay. A slight chance of showers in the morning, then a chance of showers in the afternoon.
Tuesday Night
Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots early in the morning. A moderate chop on the bay, diminishing to light chop early in the morning. A chance of showers.
Wednesday
Southeast winds 5 to 10 knots. Light chop on the bay. A chance of showers. A slight chance of thunderstorms in the afternoon.
Wednesday Night
East winds 5 to 10 knots, becoming north after midnight. Light chop on the bay. A slight chance of showers.
Thursday
North winds around 10 knots, becoming northeast late in the afternoon. Light chop on the bay.
Thursday Night
Northeast winds 5 to 10 knots, becoming east early in the morning. Light chop on the bay, diminishing to smooth early in the morning.

winds and waves higher in and near thunderstorms.




Winds and waves higher in and near thunderstorms.
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1120 AM CST Sun Jan 18 2026
 
 

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