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18NM NW Galveston TX

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 5:46 pm CDT Sep 13, 2026
Forecast Valid: 5pm CDT Sep 13, 2026-6pm CDT Sep 20, 2026

Late Afternoon

SSE wind around 10 kt. A slight chance of showers and thunderstorms. Seas around 1 ft.

Tonight

SSE wind around 10 kt. A slight chance of showers and thunderstorms before 9pm. Seas around 1 ft.

Monday

SE wind 5 to 10 kt. A chance of showers and thunderstorms, mainly between 7am and 3pm. Seas around 1 ft.

Monday Night

SSE wind 5 to 15 kt. Mostly clear. Seas around 1 ft.

Tuesday

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

Tuesday Night

SE wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

Wednesday

E wind 5 to 10 kt. A chance of showers and thunderstorms, mainly after 1pm. Seas 1 ft or less.

Wednesday Night

ESE wind around 10 kt. A chance of showers and thunderstorms, mainly after 1am. Seas around 1 ft.

Thursday

E wind around 10 kt. A slight chance of showers and thunderstorms. Seas around 1 ft.

Winds and waves higher in and near thunderstorms.

*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.