For More Weather Information:

Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming SSE 5 to 10 kt in the morning. A chance of showers, mainly before 1pm.   Seas around 2 ft.

      High: 57 °F

      ⇑SSE 10kt
      2ft

    • Wednesday Night

      Wednesday Night:S wind 10 to 15 kt. Mostly cloudy. Seas around 3 ft.

      Low: 49 °F

      S 15kt
      3ft

    • Thursday

      Thursday:SSE wind around 10 kt becoming E in the afternoon. Rain likely, then rain and possibly a thunderstorm after 2pm.   Seas around 3 ft.

      High: 54 °F

      ESE 10kt
      3ft

    • Thursday Night

      Thursday Night:ENE wind around 10 kt. Rain.   Seas around 3 ft.

      Low: 47 °F

      ENE 10kt
      3ft

    • Friday

      Friday:NE wind 5 to 10 kt. Rain, mainly before 1pm.   Seas around 3 ft.

      High: 52 °F

      NE 10kt
      3ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Partly cloudy. Seas around 3 ft.

      Low: 47 °F

      Light Wind
      3ft

    • Saturday

      Saturday:WSW wind 5 to 10 kt becoming SSW in the afternoon. Sunny. Seas around 4 ft.

      High: 66 °F

      SSW 10kt
      4ft

    • Saturday Night

      Saturday Night:SW wind around 10 kt. Mostly clear. Seas around 3 ft.

      Low: 55 °F

      SW 10kt
      3ft

    • Sunday

      Sunday:W wind around 10 kt. Sunny. Seas 2 to 3 ft.

      High: 69 °F

      W 10kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:25 am EDT May 13, 2026
Forecast Valid: 4am EDT May 13, 2026-6pm EDT May 19, 2026

View Nearby Observations

Detailed Forecast


Wednesday
Variable winds less than 5 kt becoming SSE 5 to 10 kt in the morning. A chance of showers, mainly before 1pm. Seas around 2 ft.
Wednesday Night
S wind 10 to 15 kt. Mostly cloudy. Seas around 3 ft.
Thursday
SSE wind around 10 kt becoming E in the afternoon. Rain likely, then rain and possibly a thunderstorm after 2pm. Seas around 3 ft.
Thursday Night
ENE wind around 10 kt. Rain. Seas around 3 ft.
Friday
NE wind 5 to 10 kt. Rain, mainly before 1pm. Seas around 3 ft.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 3 ft.
Saturday
WSW wind 5 to 10 kt becoming SSW in the afternoon. Sunny. Seas around 4 ft.
Saturday Night
SW wind around 10 kt. Mostly clear. Seas around 3 ft.
Sunday
W wind around 10 kt. Sunny. Seas 2 to 3 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: 2:25 am EDT May 13, 2026
Forecast Valid: 4am EDT May 13, 2026-6pm EDT May 19, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data