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Houston, TX Local Forecast Office

18NM NW Galveston TX

Marine Point Forecast

[NOTICE]

Today
High: 82 °F
Light Wind
< 1ft
Tonight
Low: 76 °F
Light Wind
< 1ft
Sunday
High: 83 °F
SE 10kt
< 1ft
Sunday Night
Low: 74 °F
SE 10kt
< 1ft
Monday
High: 82 °F
NNE 10kt
< 1ft
Monday Night
Low: 69 °F
NE 10kt
1ft
Tuesday
High: 79 °F
NE 10kt
< 1ft
Tuesday Night
Low: 69 °F
Light Wind
< 1ft
Wednesday
High: 82 °F
⇑SE 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:20 am CDT May 9, 2026
Forecast Valid: 10am CDT May 9, 2026-6pm CDT May 15, 2026

View Nearby Observations

Detailed Forecast

Today

Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 4pm. Seas 1 ft or less.

Tonight

Variable winds 5 kt or less. A chance of showers and thunderstorms before 7pm. Seas 1 ft or less.

Sunday

S wind 5 to 10 kt becoming ESE in the afternoon. Partly sunny. Seas 1 ft or less.

Sunday Night

SE wind 5 to 10 kt becoming N after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Seas 1 ft or less.

Monday

NNE wind around 10 kt. A slight chance of thunderstorms before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Seas 1 ft or less.

Monday Night

NE wind around 10 kt. Partly cloudy. Seas around 1 ft.

Tuesday

NE wind 5 to 10 kt becoming E in the afternoon. Mostly sunny. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming SE 5 to 10 kt in the afternoon. Mostly sunny. 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.