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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:S wind around 15 kt, with gusts as high as 20 kt. A chance of showers, mainly after 2pm.   Seas around 2 ft.

      High: 44 °F

      S 15kt
      2ft

    • Wednesday Night

      Wednesday Night:S wind 10 to 15 kt. A chance of showers, mainly after 2am.   Seas around 2 ft.

      Low: 42 °F

      S 15kt
      2ft

    • Thursday

      Thursday:W wind around 10 kt becoming NNW in the afternoon. A slight chance of showers before 3pm.   Seas around 1 ft.

      High: 50 °F

      NNW 10kt
      1ft

    • Thursday Night

      Thursday Night:NW wind around 10 kt. Partly cloudy. Seas 1 to 2 ft.

      Low: 40 °F

      NW 10kt
      1-2ft

    • Friday

      Friday:NW wind 5 to 10 kt becoming ESE in the afternoon. Mostly sunny. Seas around 1 ft.

      High: 46 °F

      NW 10kt
      1ft

    • Friday Night

      Friday Night:SE wind 5 to 10 kt becoming N in the evening. Partly cloudy. Seas around 1 ft.

      Low: 40 °F

      N 10kt
      1ft

    • Saturday

      Saturday:NNE wind 5 to 10 kt becoming ESE in the afternoon. Mostly sunny. Seas around 1 ft.

      High: 45 °F

      NNE 10kt
      1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.

      Low: 42 °F

      Light Wind
      1ft

    • Sunday

      Sunday:Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.

      High: 46 °F

      Light Wind
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:33 am EDT Apr 22, 2026
Forecast Valid: 3am EDT Apr 22, 2026-6pm EDT Apr 28, 2026

View Nearby Observations

Detailed Forecast


Wednesday
S wind around 15 kt, with gusts as high as 20 kt. A chance of showers, mainly after 2pm. Seas around 2 ft.
Wednesday Night
S wind 10 to 15 kt. A chance of showers, mainly after 2am. Seas around 2 ft.
Thursday
W wind around 10 kt becoming NNW in the afternoon. A slight chance of showers before 3pm. Seas around 1 ft.
Thursday Night
NW wind around 10 kt. Partly cloudy. Seas 1 to 2 ft.
Friday
NW wind 5 to 10 kt becoming ESE in the afternoon. Mostly sunny. Seas around 1 ft.
Friday Night
SE wind 5 to 10 kt becoming N in the evening. Partly cloudy. Seas around 1 ft.
Saturday
NNE wind 5 to 10 kt becoming ESE in the afternoon. Mostly sunny. Seas around 1 ft.
Saturday Night
Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.
Sunday
Variable winds 5 kt or less. Mostly sunny. Seas around 1 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: 2:33 am EDT Apr 22, 2026
Forecast Valid: 3am EDT Apr 22, 2026-6pm EDT Apr 28, 2026
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