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Hot off the Presses - The NWS Anchorage Climate Outlook - the Autumn 2026 and Winter 2026-2027 Edition
New: NWS Anchorage will beginning issuing Heat Advisories on or about June 9, 2026.

For More Weather Information:

12NM SW Old Harbor AK

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 9:07 pm AKDT Jul 30, 2026
Forecast Valid: 9pm AKDT Jul 30, 2026-6pm AKDT Aug 6, 2026

Synopsis: A ridge of high pressure extends across the northern Gulf of Alaska through Sat morning.

Tonight

NW wind around 10 kt. Mostly clear. Seas around 1 ft.

Friday

W wind 5 to 10 kt. Sunny. Seas 1 to 2 ft.

Friday Night

W wind 5 to 10 kt. A slight chance of rain after 4am. Seas around 1 ft.

Saturday

Variable winds 5 kt or less. A chance of rain between 7am and 10am. Seas around 1 ft.

Saturday Night

Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.

Sunday

Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.

Sunday Night

Variable winds 5 kt or less. Cloudy. Seas around 1 ft.

Monday

S wind 5 to 10 kt. Showers likely. Seas around 1 ft.

Monday Night

S wind around 10 kt. Showers. Seas around 2 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.

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