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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:WNW wind 5 to 10 kt. Clear. Seas around 3 ft.

      Low: 36 °F

      WNW 10kt
      3ft

    • Sunday

      Sunday:NW wind 5 to 10 kt becoming SSE in the afternoon. Increasing clouds. Seas around 3 ft.

      High: 47 °F

      SSE 10kt
      3ft

    • Sunday Night

      Sunday Night:S wind around 10 kt. Showers, mainly after 11pm.   Seas around 3 ft.

      Low: 41 °F

      S 10kt
      3ft

    • Monday

      Monday:SSW wind around 10 kt. Showers likely before 10am, then a chance of showers after noon.   Seas around 4 ft.

      High: 60 °F

      SSW 10kt
      4ft

    • Monday Night

      Monday Night:W wind around 10 kt. Mostly cloudy. Seas around 3 ft.

      Low: 53 °F

      W 10kt
      3ft

    • Tuesday

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

      High: 65 °F

      Light Wind
      2ft

    • Tuesday Night

      Tuesday Night:S wind 5 to 10 kt becoming SW after midnight. A chance of showers between 8pm and 3am.   Seas around 2 ft.

      Low: 53 °F

      SSW 10kt
      2ft

    • Wednesday

      Wednesday:WSW wind 5 to 10 kt becoming SSE in the afternoon. Partly sunny. Seas around 2 ft.

      High: 65 °F

      SSE 10kt
      2ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. A chance of showers.   Seas around 2 ft.

      Low: 49 °F

      Light Wind
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:43 pm EDT Apr 11, 2026
Forecast Valid: 11pm EDT Apr 11, 2026-6pm EDT Apr 18, 2026

View Nearby Observations

Detailed Forecast


Overnight
WNW wind 5 to 10 kt. Clear. Seas around 3 ft.
Sunday
NW wind 5 to 10 kt becoming SSE in the afternoon. Increasing clouds. Seas around 3 ft.
Sunday Night
S wind around 10 kt. Showers, mainly after 11pm. Seas around 3 ft.
Monday
SSW wind around 10 kt. Showers likely before 10am, then a chance of showers after noon. Seas around 4 ft.
Monday Night
W wind around 10 kt. Mostly cloudy. Seas around 3 ft.
Tuesday
Variable winds 5 kt or less. Partly sunny. Seas around 2 ft.
Tuesday Night
S wind 5 to 10 kt becoming SW after midnight. A chance of showers between 8pm and 3am. Seas around 2 ft.
Wednesday
WSW wind 5 to 10 kt becoming SSE in the afternoon. Partly sunny. Seas around 2 ft.
Wednesday Night
Variable winds 5 kt or less. A chance of showers. 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: 7:43 pm EDT Apr 11, 2026
Forecast Valid: 11pm EDT Apr 11, 2026-6pm EDT Apr 18, 2026
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