National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

For More Weather Information:

Gray/Portland, ME Local Forecast Office

4NM E Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:WSW wind 5 to 10 kt becoming S after midnight. Winds could gust as high as 20 kt. Rain, mainly before 4am. Seas around 1 ft.

      Low: 40 °F

      S 10kt
      1ft

    • Sunday

      Sunday:W wind 10 to 15 kt increasing to 15 to 20 kt in the afternoon. Winds could gust as high as 25 kt. Isolated showers before 4pm, then isolated showers after 5pm. Seas around 1 ft.

      High: 51 °F

      ⇑W 20kt
      1ft

    • Sunday Night

      Sunday Night:W wind 15 to 20 kt, with gusts as high as 30 kt. Isolated showers before 7pm. Seas around 1 ft.

      Low: 34 °F

      W 20kt
      1ft

    • Monday

      Monday:WNW wind around 20 kt, with gusts as high as 30 kt. Mostly sunny. Seas around 1 ft.

      High: 41 °F

      WNW 20kt
      1ft

    • Monday Night

      Monday Night:W wind 15 to 20 kt. Mostly clear. Seas around 1 ft.

      Low: 34 °F

      W 20kt
      1ft

    • Tuesday

      Tuesday:W wind around 15 kt, with gusts as high as 20 kt. Sunny. Seas around 1 ft.

      High: 43 °F

      W 15kt
      1ft

    • Tuesday Night

      Tuesday Night:W wind around 10 kt. Mostly clear. Seas around 1 ft.

      Low: 33 °F

      W 10kt
      1ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. Sunny. Seas around 1 ft.

      High: 43 °F

      Light Wind
      1ft

    • Wednesday Night

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

      Low: 32 °F

      Light Wind
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:55 pm EST Nov 15, 2025
Forecast Valid: 6pm EST Nov 15, 2025-6pm EST Nov 22, 2025

View Nearby Observations

Detailed Forecast


Tonight
WSW wind 5 to 10 kt becoming S after midnight. Winds could gust as high as 20 kt. Rain, mainly before 4am. Seas around 1 ft.
Sunday
W wind 10 to 15 kt increasing to 15 to 20 kt in the afternoon. Winds could gust as high as 25 kt. Isolated showers before 4pm, then isolated showers after 5pm. Seas around 1 ft.
Sunday Night
W wind 15 to 20 kt, with gusts as high as 30 kt. Isolated showers before 7pm. Seas around 1 ft.
Monday
WNW wind around 20 kt, with gusts as high as 30 kt. Mostly sunny. Seas around 1 ft.
Monday Night
W wind 15 to 20 kt. Mostly clear. Seas around 1 ft.
Tuesday
W wind around 15 kt, with gusts as high as 20 kt. Sunny. Seas around 1 ft.
Tuesday Night
W wind around 10 kt. Mostly clear. Seas around 1 ft.
Wednesday
Variable winds 5 kt or less. Sunny. Seas around 1 ft.
Wednesday Night
Variable winds 5 kt or less. Partly cloudy. 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...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

Point Forecast: 43.06°N 70.69°W
Last Update: 12:55 pm EST Nov 15, 2025
Forecast Valid: 6pm EST Nov 15, 2025-6pm EST Nov 22, 2025
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data