For More Weather Information:

Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Late Afternoon

      Late Afternoon:NNE wind around 20 kt, with gusts as high as 30 kt. A slight chance of showers before 5pm.   Seas 3 to 4 ft.

      High: 51 °F

      NNE 20kt
      3-4ft

    • Tonight

      Tonight:NE wind 5 to 10 kt becoming NNW after midnight. Mostly cloudy, then gradually becoming mostly clear. Seas around 3 ft.

      Low: 46 °F

      NE 10kt
      3ft

    • Sunday

      Sunday:Variable winds 5 kt or less. Showers likely, mainly after 3pm.   Seas around 2 ft.

      High: 59 °F

      Light Wind
      2ft

    • Sunday Night

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

      Low: 49 °F

      Light Wind
      2ft

    • Monday

      Monday:ENE wind around 10 kt. Showers likely before 1pm.   Seas 3 to 4 ft.

      High: 53 °F

      ENE 10kt
      3-4ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Mostly clear. Seas 2 to 3 ft.

      Low: 48 °F

      Light Wind
      2-3ft

    • Tuesday

      Tuesday:WSW wind 5 to 10 kt becoming SSE in the afternoon. Sunny. Seas around 2 ft.

      High: 56 °F

      SSE 10kt
      2ft

    • Tuesday Night

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

      Low: 50 °F

      Light Wind
      2ft

    • Wednesday

      Wednesday:N wind around 10 kt becoming SE in the afternoon. Mostly sunny. Seas 1 to 2 ft.

      High: 57 °F

      NE 10kt
      1-2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:26 pm EDT May 30, 2026
Forecast Valid: 4pm EDT May 30, 2026-6pm EDT Jun 6, 2026

View Nearby Observations

Detailed Forecast


Late Afternoon
NNE wind around 20 kt, with gusts as high as 30 kt. A slight chance of showers before 5pm. Seas 3 to 4 ft.
Tonight
NE wind 5 to 10 kt becoming NNW after midnight. Mostly cloudy, then gradually becoming mostly clear. Seas around 3 ft.
Sunday
Variable winds 5 kt or less. Showers likely, mainly after 3pm. Seas around 2 ft.
Sunday Night
Variable winds 5 kt or less. A chance of showers before 2am. Seas around 2 ft.
Monday
ENE wind around 10 kt. Showers likely before 1pm. Seas 3 to 4 ft.
Monday Night
Variable winds 5 kt or less. Mostly clear. Seas 2 to 3 ft.
Tuesday
WSW wind 5 to 10 kt becoming SSE in the afternoon. Sunny. Seas around 2 ft.
Tuesday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.
Wednesday
N wind around 10 kt becoming SE in the afternoon. Mostly sunny. 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.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

Point Forecast: 42.99°N 70.62°W
Last Update: 2:26 pm EDT May 30, 2026
Forecast Valid: 4pm EDT May 30, 2026-6pm EDT Jun 6, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data