Hazardous Weather Conditions

For More Weather Information:

Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:S wind around 25 kt. Showers.   Seas around 8 ft.

      High: 40 °F

      S 25kt
      8ft

    • Tonight

      Tonight:W wind 20 to 25 kt. Showers likely, mainly before 4am.   Seas 9 ft subsiding to 6 ft.

      Low: 38 °F

      W 25kt
      9ftWaves Subsiding

      Small Craft Advisory
      Small Craft Advisory

    • Thursday

      Thursday:W wind around 30 kt, with gusts as high as 35 kt. A chance of showers, mainly before 10am.   Seas 10 to 11 ft.

      High: 41 °F

      W 30kt
      10-11ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday Night

      Thursday Night:W wind around 25 kt, with gusts as high as 30 kt. Partly cloudy. Seas 8 to 9 ft.

      Low: 38 °F

      W 25kt
      8-9ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday

      Friday:W wind 15 to 20 kt, with gusts as high as 30 kt. Partly sunny. Seas 6 to 8 ft.

      High: 41 °F

      W 20kt
      6-8ft

    • Friday Night

      Friday Night:NW wind 10 to 15 kt. A chance of rain before 4am.   Seas 4 to 5 ft.

      Low: 37 °F

      NW 15kt
      4-5ft

    • Saturday

      Saturday:N wind 15 to 20 kt. Mostly cloudy. Seas around 4 ft.

      High: 41 °F

      N 20kt
      4ft

    • Saturday Night

      Saturday Night:N wind 10 to 15 kt. A chance of showers.   Seas 3 to 4 ft.

      Low: 38 °F

      N 15kt
      3-4ft

    • Sunday

      Sunday:E wind 15 to 20 kt increasing to 25 to 30 kt in the morning. Winds could gust as high as 35 kt. Showers likely.   Seas 3 to 4 ft.

      High: 41 °F

      ⇑E 30kt
      3-4ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:17 pm AKDT May 20, 2026
Forecast Valid: 3pm AKDT May 20, 2026-6pm AKDT May 26, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

Synopsis: A 976 mb low 25 nm E of Atka moves to 60 nm SE of Cape Newenham at 992 mb Thu afternoon and continues inland by Fri morning.

This Afternoon
S wind around 25 kt. Showers. Seas around 8 ft.
Tonight
W wind 20 to 25 kt. Showers likely, mainly before 4am. Seas 9 ft subsiding to 6 ft.
Thursday
W wind around 30 kt, with gusts as high as 35 kt. A chance of showers, mainly before 10am. Seas 10 to 11 ft.
Thursday Night
W wind around 25 kt, with gusts as high as 30 kt. Partly cloudy. Seas 8 to 9 ft.
Friday
W wind 15 to 20 kt, with gusts as high as 30 kt. Partly sunny. Seas 6 to 8 ft.
Friday Night
NW wind 10 to 15 kt. A chance of rain before 4am. Seas 4 to 5 ft.
Saturday
N wind 15 to 20 kt. Mostly cloudy. Seas around 4 ft.
Saturday Night
N wind 10 to 15 kt. A chance of showers. Seas 3 to 4 ft.
Sunday
E wind 15 to 20 kt increasing to 25 to 30 kt in the morning. Winds could gust as high as 35 kt. Showers likely. Seas 3 to 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: 52.89°N 173.1°W
Last Update: 3:17 pm AKDT May 20, 2026
Forecast Valid: 3pm AKDT May 20, 2026-6pm AKDT May 26, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data