Hazardous Weather Conditions

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Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Monday

      Monday:NW wind around 10 kt. Sunny. Seas 1 to 2 ft.

      High: 46 °F

      NW 10kt
      1-2ft

    • Monday Night

      Monday Night:WNW wind around 10 kt becoming SW after midnight. Increasing clouds. Seas 1 to 2 ft.

      Low: 40 °F

      SW 10kt
      1-2ft

    • Tuesday

      Tuesday:SW wind 10 to 15 kt. Cloudy. Seas around 2 ft.

      High: 49 °F

      SW 15kt
      2ft

    • Tuesday Night

      Tuesday Night:S wind around 10 kt. Rain, mainly after 8pm.   Seas around 2 ft.

      Low: 47 °F

      S 10kt
      2ft

    • Wednesday

      Wednesday:S wind 5 to 10 kt. Rain likely, mainly before 2pm.   Seas around 2 ft.

      High: 54 °F

      S 10kt
      2ft

    • Wednesday Night

      Wednesday Night:S wind 10 to 13 kt becoming W 12 to 15 kt after midnight. Winds could gust as high as 25 kt. A chance of rain before 5am.   Seas 1 ft building to 3 ft.

      Low: 43 °F

      ⇑W 15kt
      Waves Building3ft

    • Thanksgiving Day

      Thanksgiving Day:WSW wind around 20 kt, with gusts as high as 30 kt. Mostly sunny. Seas around 3 ft.

      High: 46 °F

      WSW 20kt
      3ft

    • Thursday Night

      Thursday Night:WSW wind 20 to 25 kt, with gusts as high as 35 kt. Partly cloudy. Seas 3 to 4 ft.

      Low: 37 °F

      WSW 25kt
      3-4ft

    • Friday

      Friday:W wind 25 to 30 kt, with gusts as high as 40 kt. Mostly sunny. Seas 3 to 4 ft.

      High: 41 °F

      W 30kt
      3-4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:23 am EST Nov 24, 2025
Forecast Valid: 3am EST Nov 24, 2025-6pm EST Nov 30, 2025

View Nearby Observations

Detailed Forecast


Monday
NW wind around 10 kt. Sunny. Seas 1 to 2 ft.
Monday Night
WNW wind around 10 kt becoming SW after midnight. Increasing clouds. Seas 1 to 2 ft.
Tuesday
SW wind 10 to 15 kt. Cloudy. Seas around 2 ft.
Tuesday Night
S wind around 10 kt. Rain, mainly after 8pm. Seas around 2 ft.
Wednesday
S wind 5 to 10 kt. Rain likely, mainly before 2pm. Seas around 2 ft.
Wednesday Night
S wind 10 to 13 kt becoming W 12 to 15 kt after midnight. Winds could gust as high as 25 kt. A chance of rain before 5am. Seas 1 ft building to 3 ft.
Thanksgiving Day
WSW wind around 20 kt, with gusts as high as 30 kt. Mostly sunny. Seas around 3 ft.
Thursday Night
WSW wind 20 to 25 kt, with gusts as high as 35 kt. Partly cloudy. Seas 3 to 4 ft.
Friday
W wind 25 to 30 kt, with gusts as high as 40 kt. Mostly sunny. 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.
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ABOUT THIS FORECAST

Point Forecast: 42.99°N 70.62°W
Last Update: 12:23 am EST Nov 24, 2025
Forecast Valid: 3am EST Nov 24, 2025-6pm EST Nov 30, 2025
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