For More Weather Information:

Gray/Portland, ME Local Forecast Office

3NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Today

      Today:NW wind around 10 kt, with gusts as high as 20 kt. Partly sunny. Seas around 3 ft.

      High: 54 °F

      NW 10kt
      3ft

    • Tonight

      Tonight:WNW wind around 10 kt becoming WSW after midnight. Mostly clear. Seas around 3 ft.

      Low: 43 °F

      WNW 10kt
      3ft

    • Monday

      Monday:SW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas 3 to 4 ft.

      High: 62 °F

      SW 15kt
      3-4ft

    • Monday Night

      Monday Night:SSW wind around 10 kt, with gusts as high as 20 kt. Mostly clear. Seas 3 to 4 ft.

      Low: 52 °F

      SSW 10kt
      3-4ft

    • Tuesday

      Tuesday:SSW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas 3 to 4 ft.

      High: 67 °F

      SSW 15kt
      3-4ft

    • Tuesday Night

      Tuesday Night:SSW wind around 15 kt, with gusts as high as 25 kt. Mostly cloudy. Seas around 4 ft.

      Low: 55 °F

      SSW 15kt
      4ft

    • Wednesday

      Wednesday:S wind around 15 kt, with gusts as high as 25 kt. Showers likely, mainly after 2pm.   Seas around 4 ft.

      High: 59 °F

      S 15kt
      4ft

    • Wednesday Night

      Wednesday Night:SSW wind 5 to 10 kt becoming WSW after midnight. Showers.   Seas 3 to 4 ft.

      Low: 48 °F

      SSW 10kt
      3-4ft

    • Thursday

      Thursday:Variable winds 5 kt or less. Showers likely.   Seas around 2 ft.

      High: 52 °F

      Light Wind
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:19 am EDT May 3, 2026
Forecast Valid: 9am EDT May 3, 2026-6pm EDT May 9, 2026

View Nearby Observations

Detailed Forecast


Today
NW wind around 10 kt, with gusts as high as 20 kt. Partly sunny. Seas around 3 ft.
Tonight
WNW wind around 10 kt becoming WSW after midnight. Mostly clear. Seas around 3 ft.
Monday
SW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas 3 to 4 ft.
Monday Night
SSW wind around 10 kt, with gusts as high as 20 kt. Mostly clear. Seas 3 to 4 ft.
Tuesday
SSW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas 3 to 4 ft.
Tuesday Night
SSW wind around 15 kt, with gusts as high as 25 kt. Mostly cloudy. Seas around 4 ft.
Wednesday
S wind around 15 kt, with gusts as high as 25 kt. Showers likely, mainly after 2pm. Seas around 4 ft.
Wednesday Night
SSW wind 5 to 10 kt becoming WSW after midnight. Showers. Seas 3 to 4 ft.
Thursday
Variable winds 5 kt or less. Showers likely. 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: 43.02°N 70.73°W
Last Update: 6:19 am EDT May 3, 2026
Forecast Valid: 9am EDT May 3, 2026-6pm EDT May 9, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data