For More Weather Information:

Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • This Afternoon

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

      High: 81 °F

      Light Wind
      2ft

    • Tonight

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

      Low: 64 °F

      Light Wind
      2ft

    • Sunday

      Sunday:SSW wind 5 to 8 kt becoming S 10 to 15 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.

      High: 82 °F

      ⇑S 15kt
      1-2ft

    • Sunday Night

      Sunday Night:S wind 10 to 15 kt. Showers, mainly after 10pm.   Seas 2 to 3 ft.

      Low: 62 °F

      S 15kt
      2-3ft

    • Monday

      Monday:W wind 5 to 10 kt becoming NW in the afternoon. Showers likely before 8am.   Seas 1 to 2 ft.

      High: 75 °F

      W 10kt
      1-2ft

    • Monday Night

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

      Low: 58 °F

      Light Wind
      1ft

    • Tuesday

      Tuesday:W wind 5 to 10 kt becoming SSW in the afternoon. Sunny. Seas around 1 ft.

      High: 73 °F

      SSW 10kt
      1ft

    • Tuesday Night

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

      Low: 59 °F

      Light Wind
      2ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Mostly sunny. Seas around 2 ft.

      High: 73 °F

      ⇑SSE 10kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:04 am EDT Jun 13, 2026
Forecast Valid: 12pm EDT Jun 13, 2026-6pm EDT Jun 19, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
Variable winds 5 kt or less. Sunny. Seas around 2 ft.
Tonight
Variable winds 5 kt or less. Mostly clear. Seas around 2 ft.
Sunday
SSW wind 5 to 8 kt becoming S 10 to 15 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.
Sunday Night
S wind 10 to 15 kt. Showers, mainly after 10pm. Seas 2 to 3 ft.
Monday
W wind 5 to 10 kt becoming NW in the afternoon. Showers likely before 8am. Seas 1 to 2 ft.
Monday Night
Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.
Tuesday
W wind 5 to 10 kt becoming SSW in the afternoon. Sunny. Seas around 1 ft.
Tuesday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.
Wednesday
Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Mostly sunny. 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.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

Point Forecast: 42.98°N 70.74°W
Last Update: 10:04 am EDT Jun 13, 2026
Forecast Valid: 12pm EDT Jun 13, 2026-6pm EDT Jun 19, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data