Last Update: 725 AM CST Wed Jan 21 2026

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Houston, TX Local Forecast Office

9NM NNE Port O Connor TX

Marine Zone Forecast


Today
South winds 5 to 10 knots. Bay waters smooth. A chance of showers this morning. A slight chance of thunderstorms. Showers likely this afternoon.
Tonight
Southeast winds around 5 knots. Bay waters smooth. A slight chance of showers in the evening. Patchy fog in the evening, then areas of fog after midnight.
Thursday
Southeast winds 5 to 10 knots. Bay waters smooth. Areas of fog in the morning.
Thursday Night
Southeast winds 5 to 10 knots. Bay waters smooth. Patchy fog.
Friday
Southeast winds around 10 knots, increasing to 10 to 15 knots in the afternoon. Bay waters smooth, increasing to slightly choppy in the afternoon. A chance of showers in the afternoon.
Friday Night
East winds around 15 knots, becoming northeast 15 to 20 knots after midnight. Bay waters slightly choppy, increasing to choppy after midnight. A chance of showers in the evening, then showers likely after midnight.
Saturday
North winds around 20 knots, increasing to 20 to 25 knots in the afternoon. Bay waters choppy, increasing to rough in the afternoon. Showers.
Saturday Night
North winds 20 to 25 knots. Bay waters rough. Showers likely. Freezing rain likely, mainly in the evening.
Sunday
North winds 20 to 25 knots. Bay waters rough. A chance of freezing rain in the morning.
Sunday Night
North winds 20 to 25 knots, diminishing to around 20 knots after midnight. Bay waters rough, diminishing to choppy after midnight.

winds and waves higher in and near thunderstorms.




Winds and waves higher in and near thunderstorms.
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725 AM CST Wed Jan 21 2026
 
 

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