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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Independence Day

      Independence Day:Variable winds 5 kt or less. Scattered showers and thunderstorms, mainly after 4pm.   Seas around 1 ft.

      High: 87 °F

      Light Wind
      1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Scattered showers and thunderstorms, mainly before 8pm.   Seas around 1 ft.

      Low: 65 °F

      Light Wind
      1ft

    • Sunday

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

      High: 73 °F

      Light Wind
      1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Increasing clouds. Seas around 1 ft.

      Low: 64 °F

      Light Wind
      1ft

    • Monday

      Monday:Variable winds 5 kt or less. Partly sunny. Seas around 1 ft.

      High: 73 °F

      Light Wind
      1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. A chance of showers after 9pm.   Seas around 1 ft.

      Low: 61 °F

      Light Wind
      1ft

    • Tuesday

      Tuesday:E wind 5 to 10 kt. A chance of showers before 2pm.   Seas around 2 ft.

      High: 71 °F

      E 10kt
      2ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. A chance of showers.   Seas around 3 ft.

      Low: 61 °F

      Light Wind
      3ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. A chance of showers.   Seas around 3 ft.

      High: 75 °F

      Light Wind
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:51 am EDT Jul 4, 2026
Forecast Valid: 10am EDT Jul 4, 2026-6pm EDT Jul 10, 2026

View Nearby Observations

Detailed Forecast


Independence Day
Variable winds 5 kt or less. Scattered showers and thunderstorms, mainly after 4pm. Seas around 1 ft.
Tonight
Variable winds 5 kt or less. Scattered showers and thunderstorms, mainly before 8pm. Seas around 1 ft.
Sunday
Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.
Sunday Night
Variable winds 5 kt or less. Increasing clouds. Seas around 1 ft.
Monday
Variable winds 5 kt or less. Partly sunny. Seas around 1 ft.
Monday Night
Variable winds 5 kt or less. A chance of showers after 9pm. Seas around 1 ft.
Tuesday
E wind 5 to 10 kt. A chance of showers before 2pm. Seas around 2 ft.
Tuesday Night
Variable winds 5 kt or less. A chance of showers. Seas around 3 ft.
Wednesday
Variable winds 5 kt or less. A chance of showers. Seas around 3 ft.

Winds and seas higher in and near tstms.

*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: 9:51 am EDT Jul 4, 2026
Forecast Valid: 10am EDT Jul 4, 2026-6pm EDT Jul 10, 2026
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