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

Hazardous Weather Conditions

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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:NE wind 15 to 25 kt. Snow likely, mainly after 9pm. Widespread freezing spray. Seas 6 to 7 ft.

      Low: 23 °F

      NE 25kt
      6-7ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday

      Thursday:NNE wind 15 to 20 kt becoming ESE in the afternoon. Winds could gust as high as 25 kt. Snow showers likely. Widespread freezing spray. Seas 6 to 7 ft.

      High: 26 °F

      NNE 20kt
      6-7ft

    • Thursday Night

      Thursday Night:E wind 25 to 30 kt. Snow likely, mainly after 3am. Widespread freezing spray. Seas 6 to 8 ft.

      Low: 24 °F

      E 30kt
      6-8ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday

      Friday:NE wind 30 to 35 kt becoming SE 20 to 25 kt in the afternoon. Rain and snow, mainly before noon. Widespread freezing spray before noon. Seas 11 ft building to 14 ft.

      High: 38 °F

      NE 35kt⇓
      Waves Building14ft

    • Friday Night

      Friday Night:ESE wind 20 to 25 kt. A chance of rain and snow. Seas 15 to 16 ft.

      Low: 33 °F

      ESE 25kt
      15-16ft

    • Saturday

      Saturday:WSW wind 15 to 25 kt becoming S in the afternoon. A chance of rain and snow before 9am. Seas 14 ft subsiding to 11 ft.

      High: 34 °F

      WSW 25kt
      14ftWaves Subsiding

    • Saturday Night

      Saturday Night:S wind 15 to 20 kt becoming S 10 to 15 kt after midnight. Mostly cloudy. Seas 11 ft subsiding to 8 ft.

      Low: 33 °F

      S 20kt⇓
      11ftWaves Subsiding

    • Sunday

      Sunday:E wind 15 to 20 kt increasing to 25 to 30 kt in the afternoon. Cloudy. Seas 8 ft building to 11 ft.

      High: 41 °F

      ⇑E 30kt
      Waves Building11ft

    • Sunday Night

      Sunday Night:E wind around 30 kt, with gusts as high as 40 kt. Rain likely. Seas 11 to 13 ft.

      Low: 38 °F

      E 30kt
      11-13ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:56 pm AKST Jan 14, 2026
Forecast Valid: 8pm AKST Jan 14, 2026-6pm AKST Jan 21, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING TONIGHT AND THURSDAY NIGHT...

Synopsis: A 1008 mb low 35 nm S of Adak moves into the N Pacific by Thu afternoon. A 979 mb N Pacific low lifts across Sand Point at 984 mb by Thu evening and continues to 20 nm E of St Lawrence Island at 990 mb by Fri afternoon. Its front lifts across the Alaska Peninsula Thu morning. Another front lifts across the Central and Eastern Aleutians by Fri morning.

Tonight
NE wind 15 to 25 kt. Snow likely, mainly after 9pm. Widespread freezing spray. Seas 6 to 7 ft.
Thursday
NNE wind 15 to 20 kt becoming ESE in the afternoon. Winds could gust as high as 25 kt. Snow showers likely. Widespread freezing spray. Seas 6 to 7 ft.
Thursday Night
E wind 25 to 30 kt. Snow likely, mainly after 3am. Widespread freezing spray. Seas 6 to 8 ft.
Friday
NE wind 30 to 35 kt becoming SE 20 to 25 kt in the afternoon. Rain and snow, mainly before noon. Widespread freezing spray before noon. Seas 11 ft building to 14 ft.
Friday Night
ESE wind 20 to 25 kt. A chance of rain and snow. Seas 15 to 16 ft.
Saturday
WSW wind 15 to 25 kt becoming S in the afternoon. A chance of rain and snow before 9am. Seas 14 ft subsiding to 11 ft.
Saturday Night
S wind 15 to 20 kt becoming S 10 to 15 kt after midnight. Mostly cloudy. Seas 11 ft subsiding to 8 ft.
Sunday
E wind 15 to 20 kt increasing to 25 to 30 kt in the afternoon. Cloudy. Seas 8 ft building to 11 ft.
Sunday Night
E wind around 30 kt, with gusts as high as 40 kt. Rain likely. Seas 11 to 13 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.
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ABOUT THIS FORECAST

Point Forecast: 52.89°N 173.1°W
Last Update: 3:56 pm AKST Jan 14, 2026
Forecast Valid: 8pm AKST Jan 14, 2026-6pm AKST Jan 21, 2026
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