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Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Today

      Today:Variable winds 5 kt or less. Mostly sunny. Seas around 2 ft.

      High: 52 °F

      Light Wind
      2ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Increasing clouds. Seas 1 to 2 ft.

      Low: 46 °F

      Light Wind
      1-2ft

    • Wednesday

      Wednesday:ESE wind 5 to 8 kt becoming S 10 to 15 kt in the morning. Winds could gust as high as 20 kt. A slight chance of showers, mainly between 4pm and 5pm. Seas 1 to 2 ft.

      High: 52 °F

      ⇑S 15kt
      1-2ft

    • Wednesday Night

      Wednesday Night:S wind 15 to 20 kt. A chance of rain after 10pm. Seas around 3 ft.

      Low: 48 °F

      S 20kt
      3ft

    • Thursday

      Thursday:ESE wind around 15 kt, with gusts as high as 20 kt. Rain, mainly after 9am. Seas 3 to 4 ft.

      High: 50 °F

      ESE 15kt
      3-4ft

    • Thursday Night

      Thursday Night:E wind 10 to 15 kt becoming NE 15 to 20 kt after midnight. Rain. Seas 2 to 3 ft.

      Low: 46 °F

      ⇑NE 20kt
      2-3ft

    • Friday

      Friday:NNE wind 15 to 20 kt. Rain. Seas 2 to 3 ft.

      High: 50 °F

      NNE 20kt
      2-3ft

    • Friday Night

      Friday Night:N wind 5 to 10 kt becoming WNW after midnight. A chance of showers. Seas around 2 ft.

      Low: 48 °F

      N 10kt
      2ft

    • Saturday

      Saturday:W wind 5 to 10 kt becoming SSW in the afternoon. Mostly sunny. Seas around 2 ft.

      High: 59 °F

      SSW 10kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:41 am EDT May 12, 2026
Forecast Valid: 9am EDT May 12, 2026-6pm EDT May 18, 2026

View Nearby Observations

Detailed Forecast


Today
Variable winds 5 kt or less. Mostly sunny. Seas around 2 ft.
Tonight
Variable winds 5 kt or less. Increasing clouds. Seas 1 to 2 ft.
Wednesday
ESE wind 5 to 8 kt becoming S 10 to 15 kt in the morning. Winds could gust as high as 20 kt. A slight chance of showers, mainly between 4pm and 5pm. Seas 1 to 2 ft.
Wednesday Night
S wind 15 to 20 kt. A chance of rain after 10pm. Seas around 3 ft.
Thursday
ESE wind around 15 kt, with gusts as high as 20 kt. Rain, mainly after 9am. Seas 3 to 4 ft.
Thursday Night
E wind 10 to 15 kt becoming NE 15 to 20 kt after midnight. Rain. Seas 2 to 3 ft.
Friday
NNE wind 15 to 20 kt. Rain. Seas 2 to 3 ft.
Friday Night
N wind 5 to 10 kt becoming WNW after midnight. A chance of showers. Seas around 2 ft.
Saturday
W wind 5 to 10 kt becoming SSW in the afternoon. Mostly sunny. Seas around 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: 8:41 am EDT May 12, 2026
Forecast Valid: 9am EDT May 12, 2026-6pm EDT May 18, 2026
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