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18NM NW Galveston TX

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:20 am CST Nov 19, 2025
Forecast Valid: 6am CST Nov 19, 2025-6pm CST Nov 25, 2025

Today

SE wind around 10 kt. A slight chance of showers and thunderstorms. Widespread dense fog before 8am. Seas 1 ft or less.

Tonight

SE wind around 10 kt. Mostly cloudy. Seas around 1 ft.

Thursday

SE wind around 10 kt. A chance of showers, mainly after noon. Seas around 1 ft.

Thursday Night

SSE wind around 10 kt. A chance of showers and thunderstorms. Patchy fog after 9pm. Seas around 1 ft.

Friday

S wind around 10 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after midnight. Seas 1 ft or less.

Saturday

Variable winds 5 kt or less. A chance of showers, with thunderstorms also possible after noon. Seas 1 ft or less.

Saturday Night

Variable winds 5 kt or less. A slight chance of showers. Seas 1 ft or less.

Sunday

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

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.