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18NM NW Galveston TX

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 7:20 pm CDT Jul 23, 2026
Forecast Valid: 12am CDT Jul 24, 2026-6pm CDT Jul 30, 2026

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 10 AM CDT

Overnight

S wind 10 to 15 kt. A slight chance of showers before 1am. Seas around 1 ft.

Friday

SSE wind around 10 kt. Sunny. Seas around 1 ft.

Friday Night

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

Saturday

SSE wind 5 to 10 kt. Sunny. Seas 1 ft or less.

Saturday Night

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

Sunday

WSW wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas 1 ft or less.

Sunday Night

S wind 5 to 10 kt becoming SW after midnight. Mostly clear. Seas 1 ft or less.

Monday

WSW wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas 1 ft or less.

Monday Night

S wind 5 to 10 kt. Clear. 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.