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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:SW wind 10 to 15 kt. A chance of showers, mainly before 3am.  Patchy fog.  Seas around 4 ft.

      Low: 48 °F

      SW 15kt
      4ft

    • Thursday

      Thursday:Variable winds 5 kt or less. Mostly cloudy through mid morning, then gradual clearing. Seas 2 to 3 ft.

      High: 57 °F

      Light Wind
      2-3ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.

      Low: 44 °F

      Light Wind
      2ft

    • Friday

      Friday:W wind around 10 kt. Mostly sunny. Seas around 2 ft.

      High: 55 °F

      W 10kt
      2ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.

      Low: 44 °F

      Light Wind
      2ft

    • Saturday

      Saturday:SSW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Rain likely, mainly after 1pm.   Seas around 2 ft.

      High: 53 °F

      ⇑S 10kt
      2ft

    • Saturday Night

      Saturday Night:S wind 5 to 10 kt becoming SSW after midnight. Showers likely, mainly before 7pm.   Seas around 3 ft.

      Low: 46 °F

      S 10kt
      3ft

    • Sunday

      Sunday:SW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Partly sunny. Seas around 3 ft.

      High: 60 °F

      ⇑S 10kt
      3ft

    • Sunday Night

      Sunday Night:S wind 5 to 10 kt. Showers likely.   Seas around 3 ft.

      Low: 48 °F

      S 10kt
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:19 pm EDT May 6, 2026
Forecast Valid: 12am EDT May 7, 2026-6pm EDT May 13, 2026

View Nearby Observations

Detailed Forecast


Overnight
SW wind 10 to 15 kt. A chance of showers, mainly before 3am. Patchy fog. Seas around 4 ft.
Thursday
Variable winds 5 kt or less. Mostly cloudy through mid morning, then gradual clearing. Seas 2 to 3 ft.
Thursday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.
Friday
W wind around 10 kt. Mostly sunny. Seas around 2 ft.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.
Saturday
SSW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Rain likely, mainly after 1pm. Seas around 2 ft.
Saturday Night
S wind 5 to 10 kt becoming SSW after midnight. Showers likely, mainly before 7pm. Seas around 3 ft.
Sunday
SW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Partly sunny. Seas around 3 ft.
Sunday Night
S wind 5 to 10 kt. Showers likely. Seas around 3 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: 42.98°N 70.74°W
Last Update: 2:19 pm EDT May 6, 2026
Forecast Valid: 12am EDT May 7, 2026-6pm EDT May 13, 2026
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