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Houston, TX Local Forecast Office

20NM NNW Galveston TX

Marine Point Forecast

[NOTICE]

This Afternoon
High: 93 °F
Light Wind
< 1ft
Tonight
Low: 80 °F
S 10kt
< 1ft
Friday
High: 90 °F
Light Wind
< 1ft
Friday Night
Low: 80 °F
SSE 10kt
< 1ft
Saturday
High: 92 °F
ESE 10kt
< 1ft
Saturday Night
Low: 79 °F
SE 10kt
< 1ft
Sunday
High: 90 °F
SE 10kt
< 1ft
Sunday Night
Low: 80 °F
SSE 10kt
< 1ft
Monday
High: 91 °F
SSE 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:21 pm CDT Aug 27, 2026
Forecast Valid: 4pm CDT Aug 27, 2026-6pm CDT Sep 3, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

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

Tonight

S wind 5 to 10 kt becoming NW after midnight. A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Seas 1 ft or less.

Friday

Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 1pm. Seas 1 ft or less.

Friday Night

SSE wind 5 to 10 kt becoming W after midnight. Clear. Seas 1 ft or less.

Saturday

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

Saturday Night

SE wind 5 to 10 kt becoming SSW after midnight. Clear. Seas 1 ft or less.

Sunday

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

Sunday Night

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

Monday

SSW wind 5 to 10 kt becoming SE in the afternoon. A slight 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.