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18NM NW Galveston TX

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 7:20 am CDT Aug 29, 2026
Forecast Valid: 11am CDT Aug 29, 2026-6pm CDT Sep 4, 2026

Today

ENE wind 5 to 10 kt becoming SE in the afternoon. A chance of showers and thunderstorms after 4pm. Seas 1 ft or less.

Tonight

S wind 5 to 10 kt becoming SW after midnight. A chance of showers and thunderstorms before 7pm. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming SE 5 to 10 kt in the afternoon. A slight chance of showers and thunderstorms after 1pm. Seas 1 ft or less.

Sunday Night

SSE wind 5 to 10 kt becoming SW after midnight. Clear. Seas 1 ft or less.

Monday

WSW wind 5 to 10 kt becoming SE in the afternoon. A slight chance of showers and thunderstorms after 1pm. Seas 1 ft or less.

Monday Night

S wind 5 to 10 kt. A slight chance of showers and thunderstorms after 1am. Seas 1 ft or less.

Tuesday

S wind 5 to 10 kt becoming SE in the afternoon. A chance of showers and thunderstorms, mainly after 1pm. Seas 1 ft or less.

Tuesday Night

SE wind 5 to 10 kt becoming variable and less than 5 kt in the evening. A slight chance of showers and thunderstorms. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming SE 5 to 10 kt in the afternoon. A chance of showers and thunderstorms after 1pm. Seas 1 ft or less.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.