National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

For More Weather Information:

Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:S wind 10 to 15 kt. Showers. Seas 6 to 8 ft.

      Low: 49 °F

      S 15kt
      6-8ft

      Small Craft Advisory
      Small Craft Advisory

    • Saturday

      Saturday:S wind 5 to 10 kt becoming E in the morning. Showers. The rain could be heavy at times. Seas around 4 ft.

      High: 56 °F

      ESE 10kt
      4ft

    • Saturday Night

      Saturday Night:SE wind 20 to 25 kt, with gusts as high as 30 kt. Showers. Some of the storms could produce heavy rainfall. Seas 5 ft building to 8 ft.

      Low: 50 °F

      SE 25kt
      Waves Building8ft

      Small Craft Advisory
      Small Craft Advisory

    • Sunday

      Sunday:SSE wind 25 to 30 kt, with gusts as high as 40 kt. Showers and possibly a thunderstorm. Seas 12 to 14 ft.

      High: 54 °F

      SSE 30kt
      12-14ft

      Small Craft Advisory
      Small Craft Advisory

    • Sunday Night

      Sunday Night:SSW wind 15 to 25 kt, with gusts as high as 35 kt. Showers and possibly a thunderstorm. Seas 14 ft subsiding to 11 ft.

      Low: 47 °F

      SSW 25kt
      14ftWaves Subsiding

      Small Craft Advisory
      Small Craft Advisory

    • Monday

      Monday:S wind around 10 kt. Showers and possibly a thunderstorm. Seas 6 to 8 ft.

      High: 53 °F

      S 10kt
      6-8ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Showers likely. Seas around 5 ft.

      Low: 45 °F

      Light Wind
      5ft

    • Tuesday

      Tuesday:ENE wind 10 to 15 kt. Showers. Seas 5 to 6 ft.

      High: 52 °F

      ENE 15kt
      5-6ft

    • Tuesday Night

      Tuesday Night:E wind 10 to 15 kt. Showers. Seas around 6 ft.

      Low: 44 °F

      E 15kt
      6ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 10:23 pm AKDT Sep 18, 2026
Forecast Valid: 11pm AKDT Sep 18, 2026-6pm AKDT Sep 25, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH LATE TONIGHT...

Synopsis: Southerly to easterly winds will continue tonight as the low lifts north into the Gulf through tonight. This has increased winds to around 30 to 35 kts and build seas to 8 to 14 ft for the Gulf and outer coastal water. The inner channels will see S winds around 15 to 25 kts. Elevated marine conditions continue into Saturday night and Sunday as another large and strong low lifts into the Gulf increasing to winds across the gulf and inner channels to around 30 to 40 kts.

Overnight
S wind 10 to 15 kt. Showers. Seas 6 to 8 ft.
Saturday
S wind 5 to 10 kt becoming E in the morning. Showers. The rain could be heavy at times. Seas around 4 ft.
Saturday Night
SE wind 20 to 25 kt, with gusts as high as 30 kt. Showers. Some of the storms could produce heavy rainfall. Seas 5 ft building to 8 ft.
Sunday
SSE wind 25 to 30 kt, with gusts as high as 40 kt. Showers and possibly a thunderstorm. Seas 12 to 14 ft.
Sunday Night
SSW wind 15 to 25 kt, with gusts as high as 35 kt. Showers and possibly a thunderstorm. Seas 14 ft subsiding to 11 ft.
Monday
S wind around 10 kt. Showers and possibly a thunderstorm. Seas 6 to 8 ft.
Monday Night
Variable winds 5 kt or less. Showers likely. Seas around 5 ft.
Tuesday
ENE wind 10 to 15 kt. Showers. Seas 5 to 6 ft.
Tuesday Night
E wind 10 to 15 kt. Showers. Seas around 6 ft.

*Notices:

  1. 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.
  2. 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.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

Point Forecast: 58.2°N 136.63°W
Last Update: 10:23 pm AKDT Sep 18, 2026
Forecast Valid: 11pm AKDT Sep 18, 2026-6pm AKDT Sep 25, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data