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Hazardous Weather Conditions

For More Weather Information:

Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Today

      Today:WNW wind 15 to 20 kt, with gusts as high as 30 kt. Sunny. Seas around 2 ft.

      High: 41 °F

      WNW 20kt
      2ft

    • Tonight

      Tonight:WNW wind 7 to 10 kt becoming NW 5 to 8 kt after midnight. Increasing clouds. Seas 1 to 2 ft.

      Low: 35 °F

      WNW 10kt⇓
      1-2ft

    • Sunday

      Sunday:S wind 10 to 15 kt increasing to 20 to 25 kt. Winds could gust as high as 30 kt. Rain, mainly after 2pm. Seas 1 ft building to 4 ft.

      High: 49 °F

      ⇑S 25kt
      Waves Building4ft

    • Sunday Night

      Sunday Night:SSW wind 22 to 25 kt becoming WSW 20 to 23 kt after midnight. Winds could gust as high as 30 kt. Showers before 1am. Seas 4 to 5 ft.

      Low: 37 °F

      SSW 25kt⇓
      4-5ft

    • Monday

      Monday:W wind around 20 kt becoming NW in the afternoon. Winds could gust as high as 30 kt. Sunny. Seas 2 to 3 ft.

      High: 40 °F

      W 20kt
      2-3ft

    • Monday Night

      Monday Night:NW wind 10 to 15 kt becoming W 5 to 8 kt after midnight. Mostly cloudy. Seas 1 to 2 ft.

      Low: 28 °F

      NW 15kt⇓
      1-2ft

    • Tuesday

      Tuesday:SSW wind 5 to 10 kt becoming E in the afternoon. A chance of snow between 11am and 1pm, then rain and snow likely. Seas around 1 ft.

      High: 39 °F

      SSW 10kt
      1ft

    • Tuesday Night

      Tuesday Night:NE wind 10 to 15 kt becoming N 15 to 20 kt after midnight. Winds could gust as high as 25 kt. Rain before midnight, then rain and snow likely between midnight and 4am, then a chance of snow after 4am. Seas 2 ft building to 4 ft.

      Low: 32 °F

      ⇑N 20kt
      Waves Building4ft

    • Wednesday

      Wednesday:NNW wind 12 to 15 kt becoming WNW 10 to 13 kt in the afternoon. Winds could gust as high as 25 kt. Mostly sunny. Seas 4 ft subsiding to 2 ft.

      High: 36 °F

      NNW 15kt⇓
      4ftWaves Subsiding


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:46 am EST Nov 29, 2025
Forecast Valid: 6am EST Nov 29, 2025-6pm EST Dec 5, 2025

View Nearby Observations

Detailed Forecast


Today
WNW wind 15 to 20 kt, with gusts as high as 30 kt. Sunny. Seas around 2 ft.
Tonight
WNW wind 7 to 10 kt becoming NW 5 to 8 kt after midnight. Increasing clouds. Seas 1 to 2 ft.
Sunday
S wind 10 to 15 kt increasing to 20 to 25 kt. Winds could gust as high as 30 kt. Rain, mainly after 2pm. Seas 1 ft building to 4 ft.
Sunday Night
SSW wind 22 to 25 kt becoming WSW 20 to 23 kt after midnight. Winds could gust as high as 30 kt. Showers before 1am. Seas 4 to 5 ft.
Monday
W wind around 20 kt becoming NW in the afternoon. Winds could gust as high as 30 kt. Sunny. Seas 2 to 3 ft.
Monday Night
NW wind 10 to 15 kt becoming W 5 to 8 kt after midnight. Mostly cloudy. Seas 1 to 2 ft.
Tuesday
SSW wind 5 to 10 kt becoming E in the afternoon. A chance of snow between 11am and 1pm, then rain and snow likely. Seas around 1 ft.
Tuesday Night
NE wind 10 to 15 kt becoming N 15 to 20 kt after midnight. Winds could gust as high as 25 kt. Rain before midnight, then rain and snow likely between midnight and 4am, then a chance of snow after 4am. Seas 2 ft building to 4 ft.
Wednesday
NNW wind 12 to 15 kt becoming WNW 10 to 13 kt in the afternoon. Winds could gust as high as 25 kt. Mostly sunny. Seas 4 ft subsiding to 2 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: 5:46 am EST Nov 29, 2025
Forecast Valid: 6am EST Nov 29, 2025-6pm EST Dec 5, 2025
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