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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:Variable winds 5 kt or less. A chance of showers, mainly after 3am.  Patchy fog after 10pm.  Seas around 2 ft.

      Low: 64 °F

      Light Wind
      2ft

    • Sunday

      Sunday:Variable winds 5 kt or less. A chance of showers, with thunderstorms also possible after 11am.  Patchy fog before 11am.  Seas around 2 ft.

      High: 72 °F

      Light Wind
      2ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight.   Seas around 2 ft.

      Low: 66 °F

      Light Wind
      2ft

    • Monday

      Monday:Variable winds 5 kt or less. Sunny. Seas around 2 ft.

      High: 78 °F

      Light Wind
      2ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Mostly clear. Seas around 2 ft.

      Low: 62 °F

      Light Wind
      2ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Sunny. Seas around 2 ft.

      High: 76 °F

      Light Wind
      2ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Mostly clear. Seas 1 to 2 ft.

      Low: 63 °F

      Light Wind
      1-2ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. Sunny. Seas around 1 ft.

      High: 78 °F

      Light Wind
      1ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. Mostly clear. Seas 1 to 2 ft.

      Low: 65 °F

      Light Wind
      1-2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:59 pm EDT Aug 22, 2026
Forecast Valid: 9pm EDT Aug 22, 2026-6pm EDT Aug 29, 2026

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Detailed Forecast


Tonight
Variable winds 5 kt or less. A chance of showers, mainly after 3am. Patchy fog after 10pm. Seas around 2 ft.
Sunday
Variable winds 5 kt or less. A chance of showers, with thunderstorms also possible after 11am. Patchy fog before 11am. Seas around 2 ft.
Sunday Night
Variable winds 5 kt or less. A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Seas around 2 ft.
Monday
Variable winds 5 kt or less. Sunny. Seas around 2 ft.
Monday Night
Variable winds 5 kt or less. Mostly clear. Seas around 2 ft.
Tuesday
Variable winds 5 kt or less. Sunny. Seas around 2 ft.
Tuesday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 to 2 ft.
Wednesday
Variable winds 5 kt or less. Sunny. Seas around 1 ft.
Wednesday Night
Variable winds 5 kt or less. Mostly clear. 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: 42.98°N 70.74°W
Last Update: 6:59 pm EDT Aug 22, 2026
Forecast Valid: 9pm EDT Aug 22, 2026-6pm EDT Aug 29, 2026
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