Last Update: 1240 AM CDT Mon Sep 1 2025

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Brownsville, TX Local Forecast Office

10NM N Port Isabel TX

Marine Zone Forecast


Today
Southwest winds around 5 knots, becoming north around 5 knots late this morning, then becoming northeast this afternoon. Smooth on the bay, increasing to light chop this afternoon. A slight chance of showers and thunderstorms late this morning. A chance of showers and thunderstorms this afternoon.
Tonight
East winds 5 to 10 knots, becoming southeast after midnight, then becoming west early in the morning. Light chop on the bay, diminishing to smooth after midnight. A slight chance of showers and thunderstorms after midnight. A chance of showers and thunderstorms early in the morning.
Tuesday
Northwest winds 5 to 10 knots, becoming northeast in the afternoon. Smooth on the bay, increasing to light chop in the afternoon. A chance of showers and thunderstorms.
Tuesday Night
East winds 5 to 10 knots, becoming around 5 knots after midnight, then becoming southwest early in the morning. Light chop on the bay, diminishing to smooth after midnight. A chance of showers and thunderstorms early in the evening, then a slight chance of showers in the late evening and overnight.
Wednesday
Northwest winds around 5 knots, becoming north late in the morning, then becoming northeast early in the afternoon, becoming around 10 knots late in the afternoon. Smooth on the bay, increasing to light chop in the afternoon.
Wednesday Night
East winds 5 to 10 knots, becoming south early in the morning. Light chop on the bay, diminishing to smooth early in the morning.
Thursday
Southwest winds around 5 knots, becoming east in the afternoon. Smooth on the bay, increasing to light chop in the afternoon.
Thursday Night
Southeast winds around 10 knots, becoming 5 to 10 knots after midnight. Light chop on the bay.
Friday
South winds 5 to 10 knots, becoming southeast in the afternoon. Smooth on the bay, increasing to light chop in the afternoon.
Friday Night
Southeast winds 5 to 10 knots. Light chop on the bay. A slight chance of showers and thunderstorms after midnight.

winds and waves higher in and near thunderstorms.




Winds and waves higher in and near thunderstorms.
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1240 AM CDT Mon Sep 1 2025
 
 

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