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18NM NW Galveston TX

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:41 am CDT May 20, 2026
Forecast Valid: 2am CDT May 20, 2026-6pm CDT May 26, 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CDT EARLY THIS

Wednesday

ESE wind 5 to 15 kt, with gusts as high as 25 kt. Showers and thunderstorms likely, mainly before 7am. Seas 1 ft or less.

Wednesday Night

SSE wind 5 to 10 kt. A chance of showers and thunderstorms, mainly after 1am. Seas around 1 ft.

Thursday

SSE wind 5 to 10 kt. Showers and thunderstorms likely, mainly after 1pm. Seas around 1 ft.

Thursday Night

S wind 5 to 10 kt. A chance of showers and thunderstorms. Seas around 1 ft.

Friday

S wind 5 to 10 kt. Showers and thunderstorms. Seas around 1 ft.

Friday Night

SSE wind around 10 kt. A chance of showers and thunderstorms, then showers likely after 1am. Seas around 1 ft.

Saturday

SSE wind 5 to 10 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

Saturday Night

SSE wind around 10 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

Sunday

S wind 5 to 10 kt. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. 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.