For More Weather Information:

Gray/Portland, ME Local Forecast Office

4NM E Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Friday

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

      High: 47 °F

      Light Wind
      1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.

      Low: 38 °F

      Light Wind
      1ft

    • Saturday

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

      High: 46 °F

      Light Wind
      1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.

      Low: 37 °F

      Light Wind
      1ft

    • Sunday

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

      High: 47 °F

      Light Wind
      1ft

    • Sunday Night

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

      Low: 39 °F

      Light Wind
      1ft

    • Monday

      Monday:ENE wind 5 to 10 kt. Partly sunny. Seas around 1 ft.

      High: 48 °F

      ENE 10kt
      1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.

      Low: 42 °F

      Light Wind
      1ft

    • Tuesday

      Tuesday:NE wind 5 to 10 kt becoming E in the afternoon. Partly sunny. Seas around 1 ft.

      High: 48 °F

      E 10kt
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:31 pm EDT Apr 23, 2026
Forecast Valid: 1am EDT Apr 24, 2026-6pm EDT Apr 30, 2026

View Nearby Observations

Detailed Forecast


Friday
Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.
Saturday
Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.
Saturday Night
Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.
Sunday
Variable winds 5 kt or less. Partly sunny. Seas around 1 ft.
Sunday Night
Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.
Monday
ENE wind 5 to 10 kt. Partly sunny. Seas around 1 ft.
Monday Night
Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.
Tuesday
NE wind 5 to 10 kt becoming E in the afternoon. Partly sunny. Seas around 1 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: 43.06°N 70.69°W
Last Update: 2:31 pm EDT Apr 23, 2026
Forecast Valid: 1am EDT Apr 24, 2026-6pm EDT Apr 30, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data