For More Weather Information:

Anchorage, AK Local Forecast Office

5NM S Chiswell Islands AK

Marine Point Forecast

[NOTICE]

Today
High: 45 °F
Light Wind
7-8ft

Small Craft Advisory
Tonight
Low: 43 °F
Light Wind
6-7ft
Thursday
High: 44 °F
Light Wind
6ft
Thursday Night
Low: 39 °F
Light Wind
4-5ft
Friday
High: 41 °F
N 15kt
3-5ft
Friday Night
Low: 32 °F
N 15kt
3-4ft
Saturday
High: 35 °F
NNE 15kt
3-4ft
Saturday Night
Low: 31 °F
NE 20kt
7ft
Sunday
High: 36 °F
ENE 20kt
7-8ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:00 am AKST Dec 3, 2025
Forecast Valid: 8am AKST Dec 3, 2025-6pm AKST Dec 9, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

Synopsis: A front over the northern Gulf Coast slides over Southeast Alaska Wed morning. A 1002 mb North Pacific low lifts into the Western Gulf near 55N 152W Friday morning.

Today

Variable winds 5 kt or less. Rain likely, mainly before noon. Seas 7 to 8 ft.

Tonight

Variable winds 5 kt or less. A chance of rain. Seas 6 to 7 ft.

Thursday

Variable winds 5 kt or less. A chance of rain. Seas around 6 ft.

Thursday Night

Variable winds 5 kt or less. A chance of rain. Seas 4 to 5 ft.

Friday

N wind 5 to 15 kt. A chance of rain. Seas 3 to 5 ft.

Friday Night

N wind 10 to 15 kt. A chance of rain before 9pm, then a chance of snow. Seas 3 to 4 ft.

Saturday

NNE wind around 15 kt. A chance of snow. Seas 3 to 4 ft.

Saturday Night

NE wind 15 to 20 kt. A chance of snow before 9pm, then rain and snow likely. Seas 4 ft building to 7 ft.

Sunday

ENE wind 10 to 20 kt. Rain and snow likely. Seas 7 to 8 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.