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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:ENE wind 5 to 10 kt becoming SE after midnight. A slight chance of rain after 4am.  Areas of fog after 1am.  Seas 5 to 6 ft.

      Low: 33 °F

      ENE 10kt
      5-6ft

    • Saturday

      Saturday:S wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Areas of fog.  Seas 5 to 6 ft.

      High: 41 °F

      ⇑S 15kt
      5-6ft

    • Saturday Night

      Saturday Night:SSW wind 10 to 15 kt. A chance of showers, mainly after midnight.  Areas of dense fog.  Seas around 5 ft.

      Low: 41 °F

      SSW 15kt
      5ft

    • Sunday

      Sunday:SW wind around 10 kt becoming W in the afternoon. A chance of rain before 8am.  Areas of fog before 9am.  Seas 3 to 4 ft.

      High: 53 °F

      W 10kt
      3-4ft

    • Sunday Night

      Sunday Night:WSW wind around 10 kt. Mostly clear. Seas around 3 ft.

      Low: 38 °F

      WSW 10kt
      3ft

    • Monday

      Monday:SSW wind 5 to 10 kt. Sunny. Seas around 3 ft.

      High: 54 °F

      SSW 10kt
      3ft

    • Monday Night

      Monday Night:SW wind around 10 kt. Clear. Seas around 3 ft.

      Low: 41 °F

      SW 10kt
      3ft

    • Tuesday

      Tuesday:WSW wind 5 to 10 kt. Sunny. Seas around 2 ft.

      High: 58 °F

      WSW 10kt
      2ft

    • Tuesday Night

      Tuesday Night:SW wind 5 to 10 kt becoming NE after midnight. A chance of rain.   Seas around 2 ft.

      Low: 39 °F

      NE 10kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:53 pm EST Mar 6, 2026
Forecast Valid: 11pm EST Mar 6, 2026-6pm EDT Mar 13, 2026

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Detailed Forecast


Overnight
ENE wind 5 to 10 kt becoming SE after midnight. A slight chance of rain after 4am. Areas of fog after 1am. Seas 5 to 6 ft.
Saturday
S wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Areas of fog. Seas 5 to 6 ft.
Saturday Night
SSW wind 10 to 15 kt. A chance of showers, mainly after midnight. Areas of dense fog. Seas around 5 ft.
Sunday
SW wind around 10 kt becoming W in the afternoon. A chance of rain before 8am. Areas of fog before 9am. Seas 3 to 4 ft.
Sunday Night
WSW wind around 10 kt. Mostly clear. Seas around 3 ft.
Monday
SSW wind 5 to 10 kt. Sunny. Seas around 3 ft.
Monday Night
SW wind around 10 kt. Clear. Seas around 3 ft.
Tuesday
WSW wind 5 to 10 kt. Sunny. Seas around 2 ft.
Tuesday Night
SW wind 5 to 10 kt becoming NE after midnight. A chance of rain. 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: 42.98°N 70.74°W
Last Update: 10:53 pm EST Mar 6, 2026
Forecast Valid: 11pm EST Mar 6, 2026-6pm EDT Mar 13, 2026
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