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21NM NNW Galveston TX

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 12:20 pm CST Nov 30, 2025
Forecast Valid: 4pm CST Nov 30, 2025-6pm CST Dec 7, 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

This Afternoon

NNE wind around 20 kt. Cloudy. Seas around 1 ft.

Tonight

NNE wind 15 to 20 kt. A slight chance of showers, then a chance of showers and thunderstorms after 3am. Seas around 1 ft.

Monday

NNE wind 10 to 15 kt. Showers and possibly a thunderstorm before 5pm, then showers likely. Patchy fog after 5pm. Seas around 1 ft.

Monday Night

N wind 15 to 20 kt, with gusts as high as 25 kt. Showers likely, mainly before 9pm. Patchy fog before 9pm. Seas around 1 ft.

Tuesday

N wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Tuesday Night

NNE wind 5 to 10 kt becoming E in the evening. Partly cloudy. Seas 1 ft or less.

Wednesday

E wind around 10 kt becoming SE in the afternoon. Mostly cloudy. Seas 1 ft or less.

Wednesday Night

ESE wind around 10 kt becoming NE after midnight. A chance of showers, then showers and possibly a thunderstorm after midnight. Seas around 1 ft.

Thursday

NE wind 10 to 15 kt. Showers and possibly a thunderstorm. 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.