For More Weather Information:

Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 46 °F
WNW 15kt
5ft
Tonight
Low: 42 °F
WNW 15kt
4ft
Wednesday
High: 46 °F
W 10kt
3-4ft
Wednesday Night
Low: 43 °F
Light Wind
2-3ft
Thursday
High: 46 °F
ESE 10kt
2-3ft
Thursday Night
Low: 44 °F
ENE 15kt
4ft
Friday
High: 47 °F
N 15kt
4ft
Friday Night
Low: 43 °F
WNW 15kt
3-4ft
Saturday
High: 46 °F
W 15kt
3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:23 pm AKDT Jul 7, 2026
Forecast Valid: 4pm AKDT Jul 7, 2026-6pm AKDT Jul 13, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A 997 mb low 70 nm SW of Saint Paul moves to the Gulf of Alaska by Wed afternoon. Its front near the Gulf Coast moves inland by Wed afternoon.

This Afternoon

WNW wind around 15 kt, with gusts as high as 20 kt. Patchy fog. Seas around 5 ft.

Tonight

WNW wind around 15 kt. Patchy fog. Seas around 4 ft.

Wednesday

W wind 5 to 10 kt. Patchy fog. Seas 3 to 4 ft.

Wednesday Night

Variable winds 5 kt or less. Patchy fog. Seas 2 to 3 ft.

Thursday

ESE wind 5 to 10 kt. A chance of rain after 10am. Seas 2 to 3 ft.

Thursday Night

ENE wind around 15 kt. Rain. Seas around 4 ft.

Friday

N wind around 15 kt. Rain likely before 10am. Seas around 4 ft.

Friday Night

WNW wind 10 to 15 kt. Cloudy. Seas 3 to 4 ft.

Saturday

W wind around 15 kt. Mostly cloudy. Seas around 3 ft.

*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.