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Houston, TX Local Forecast Office

18NM NW Galveston TX

Marine Point Forecast

[NOTICE]

This Afternoon
High: 89 °F
ESE 10kt
< 1ft
Tonight
Low: 81 °F
Light Wind
< 1ft
Saturday
High: 89 °F
Light Wind
< 1ft
Saturday Night
Low: 80 °F
Light Wind
< 1ft
Sunday
High: 89 °F
Light Wind
< 1ft
Sunday Night
Low: 81 °F
Light Wind
< 1ft
Labor Day
High: 90 °F
Light Wind
< 1ft
Monday Night
Low: 81 °F
Light Wind
< 1ft
Tuesday
High: 89 °F
⇑SE 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:21 pm CDT Sep 4, 2026
Forecast Valid: 4pm CDT Sep 4, 2026-6pm CDT Sep 11, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

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

Tonight

Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 5am. Seas 1 ft or less.

Saturday

Variable winds 5 kt or less. A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 5pm, then a chance of showers and thunderstorms after 5pm. Seas 1 ft or less.

Saturday Night

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

Sunday

Variable winds 5 kt or less. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Seas 1 ft or less.

Sunday Night

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

Labor Day

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

Monday Night

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

Tuesday

Variable winds less than 5 kt becoming SE 5 to 10 kt in the afternoon. A chance of showers and thunderstorms, mainly after 1pm. 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.