For More Weather Information:

Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:Variable winds 5 kt or less. Mostly cloudy. Seas around 3 ft.

      High: 57 °F

      Light Wind
      3ft

    • Tonight

      Tonight:Variable winds 5 kt or less. A chance of showers after 4am.   Seas around 3 ft.

      Low: 50 °F

      Light Wind
      3ft

    • Tuesday

      Tuesday:SSW wind 5 to 15 kt becoming W in the afternoon. A chance of showers, mainly before 10am.   Seas 3 to 5 ft.

      High: 56 °F

      W 15kt
      3-5ft

    • Tuesday Night

      Tuesday Night:W wind around 25 kt, with gusts as high as 30 kt. Partly cloudy. Seas around 7 ft.

      Low: 48 °F

      W 25kt
      7ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday

      Wednesday:W wind around 20 kt. Mostly cloudy. Seas 5 to 6 ft.

      High: 54 °F

      W 20kt
      5-6ft

    • Wednesday Night

      Wednesday Night:W wind 15 to 20 kt. A chance of showers.   Seas around 5 ft.

      Low: 49 °F

      W 20kt
      5ft

    • Thursday

      Thursday:WSW wind around 10 kt. Showers likely, mainly after 10am.   Seas around 5 ft.

      High: 54 °F

      WSW 10kt
      5ft

    • Thursday Night

      Thursday Night:SW wind around 10 kt. Showers.   Seas around 4 ft.

      Low: 49 °F

      SW 10kt
      4ft

    • Friday

      Friday:Variable winds 5 kt or less. Showers.   Seas around 4 ft.

      High: 54 °F

      Light Wind
      4ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:20 pm AKDT Jul 20, 2026
Forecast Valid: 4pm AKDT Jul 20, 2026-6pm AKDT Jul 26, 2026

View Nearby Observations

Detailed Forecast


Synopsis: High pressure in the Gulf of Alaska will persist for much of the week, bringing broad west to northwesterly winds. A brief southeasterly shift Monday night for the northeast coast may bring showers, low clouds and low visibility. Winds for the southern coastal waters and near Cape Spencer into Cross Sound will increase with elevated seas by later Tuesday into Wednesday.

This Afternoon
Variable winds 5 kt or less. Mostly cloudy. Seas around 3 ft.
Tonight
Variable winds 5 kt or less. A chance of showers after 4am. Seas around 3 ft.
Tuesday
SSW wind 5 to 15 kt becoming W in the afternoon. A chance of showers, mainly before 10am. Seas 3 to 5 ft.
Tuesday Night
W wind around 25 kt, with gusts as high as 30 kt. Partly cloudy. Seas around 7 ft.
Wednesday
W wind around 20 kt. Mostly cloudy. Seas 5 to 6 ft.
Wednesday Night
W wind 15 to 20 kt. A chance of showers. Seas around 5 ft.
Thursday
WSW wind around 10 kt. Showers likely, mainly after 10am. Seas around 5 ft.
Thursday Night
SW wind around 10 kt. Showers. Seas around 4 ft.
Friday
Variable winds 5 kt or less. Showers. Seas around 4 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...

ABOUT THIS FORECAST

Point Forecast: 58.2°N 136.63°W
Last Update: 3:20 pm AKDT Jul 20, 2026
Forecast Valid: 4pm AKDT Jul 20, 2026-6pm AKDT Jul 26, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data