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Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:NNW wind 20 to 25 kt, with gusts as high as 35 kt. Rain before 1am, then rain and snow likely.   Seas around 2 ft.

      Low: 34 °F

      NNW 25kt
      2ft

    • Wednesday

      Wednesday:NNW wind 10 to 15 kt becoming W 5 to 8 kt in the afternoon. Winds could gust as high as 20 kt. Mostly cloudy, then gradually becoming sunny. Seas 2 to 3 ft.

      High: 39 °F

      NNW 15kt⇓
      2-3ft

    • Wednesday Night

      Wednesday Night:W wind 5 to 8 kt becoming SW 10 to 15 kt after midnight. Mostly cloudy. Seas around 2 ft.

      Low: 35 °F

      ⇑SW 15kt
      2ft

    • Thursday

      Thursday:WSW wind 15 to 20 kt becoming WNW 20 to 25 kt in the afternoon. Winds could gust as high as 35 kt. A chance of snow showers after 2pm.   Seas around 3 ft.

      High: 39 °F

      ⇑WNW 25kt
      3ft

    • Thursday Night

      Thursday Night:WNW wind 20 to 25 kt decreasing to 15 to 20 kt after midnight. Winds could gust as high as 35 kt. Mostly clear. Seas around 3 ft.

      Low: 17 °F

      WNW 25kt⇓
      3ft

    • Friday

      Friday:WNW wind 10 to 15 kt becoming SW in the afternoon. Mostly sunny. Seas around 2 ft.

      High: 30 °F

      WNW 15kt
      2ft

    • Friday Night

      Friday Night:SW wind around 10 kt becoming W after midnight. Mostly cloudy. Seas around 2 ft.

      Low: 28 °F

      SW 10kt
      2ft

    • Saturday

      Saturday:Variable winds 5 kt or less. A chance of snow after 9am, mixing with rain after 3pm.   Seas 1 to 2 ft.

      High: 37 °F

      Light Wind
      1-2ft

    • Saturday Night

      Saturday Night:W wind around 10 kt. A chance of rain before 7pm.   Seas 1 to 2 ft.

      Low: 31 °F

      W 10kt
      1-2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:50 pm EST Dec 2, 2025
Forecast Valid: 12am EST Dec 3, 2025-6pm EST Dec 9, 2025

View Nearby Observations

Detailed Forecast


Overnight
NNW wind 20 to 25 kt, with gusts as high as 35 kt. Rain before 1am, then rain and snow likely. Seas around 2 ft.
Wednesday
NNW wind 10 to 15 kt becoming W 5 to 8 kt in the afternoon. Winds could gust as high as 20 kt. Mostly cloudy, then gradually becoming sunny. Seas 2 to 3 ft.
Wednesday Night
W wind 5 to 8 kt becoming SW 10 to 15 kt after midnight. Mostly cloudy. Seas around 2 ft.
Thursday
WSW wind 15 to 20 kt becoming WNW 20 to 25 kt in the afternoon. Winds could gust as high as 35 kt. A chance of snow showers after 2pm. Seas around 3 ft.
Thursday Night
WNW wind 20 to 25 kt decreasing to 15 to 20 kt after midnight. Winds could gust as high as 35 kt. Mostly clear. Seas around 3 ft.
Friday
WNW wind 10 to 15 kt becoming SW in the afternoon. Mostly sunny. Seas around 2 ft.
Friday Night
SW wind around 10 kt becoming W after midnight. Mostly cloudy. Seas around 2 ft.
Saturday
Variable winds 5 kt or less. A chance of snow after 9am, mixing with rain after 3pm. Seas 1 to 2 ft.
Saturday Night
W wind around 10 kt. A chance of rain before 7pm. Seas 1 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: 8:50 pm EST Dec 2, 2025
Forecast Valid: 12am EST Dec 3, 2025-6pm EST Dec 9, 2025
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