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

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Today

      Today:N wind 15 to 20 kt. Snow likely, mainly before 2pm. Seas 2 to 3 ft.

      High: 32 °F

      N 20kt
      2-3ft

    • Tonight

      Tonight:N wind 5 to 10 kt becoming WSW after midnight. A slight chance of snow after 5am. Seas 3 to 4 ft.

      Low: 27 °F

      N 10kt
      3-4ft

    • Christmas Day

      Christmas Day:SW wind 10 to 13 kt becoming NW 12 to 15 kt in the afternoon. Winds could gust as high as 20 kt. A chance of snow showers, mainly before noon. Seas around 5 ft.

      High: 37 °F

      ⇑NW 15kt
      5ft

    • Thursday Night

      Thursday Night:NNW wind around 15 kt, with gusts as high as 25 kt. Mostly clear. Seas 4 to 5 ft.

      Low: 14 °F

      NNW 15kt
      4-5ft

    • Friday

      Friday:NNW wind 5 to 10 kt. Mostly sunny. Seas 2 to 3 ft.

      High: 23 °F

      NNW 10kt
      2-3ft

    • Friday Night

      Friday Night:N wind 5 to 10 kt. A chance of snow after 1am. Seas around 2 ft.

      Low: 19 °F

      N 10kt
      2ft

    • Saturday

      Saturday:NNE wind around 10 kt. A chance of snow before 2pm. Seas around 2 ft.

      High: 26 °F

      NNE 10kt
      2ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Mostly cloudy. Seas around 3 ft.

      Low: 21 °F

      Light Wind
      3ft

    • Sunday

      Sunday:WNW wind 5 to 10 kt becoming SSW in the afternoon. A chance of rain and snow after 3pm. Seas around 3 ft.

      High: 37 °F

      SSW 10kt
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:19 am EST Dec 24, 2025
Forecast Valid: 9am EST Dec 24, 2025-6pm EST Dec 30, 2025

View Nearby Observations

Detailed Forecast


Today
N wind 15 to 20 kt. Snow likely, mainly before 2pm. Seas 2 to 3 ft.
Tonight
N wind 5 to 10 kt becoming WSW after midnight. A slight chance of snow after 5am. Seas 3 to 4 ft.
Christmas Day
SW wind 10 to 13 kt becoming NW 12 to 15 kt in the afternoon. Winds could gust as high as 20 kt. A chance of snow showers, mainly before noon. Seas around 5 ft.
Thursday Night
NNW wind around 15 kt, with gusts as high as 25 kt. Mostly clear. Seas 4 to 5 ft.
Friday
NNW wind 5 to 10 kt. Mostly sunny. Seas 2 to 3 ft.
Friday Night
N wind 5 to 10 kt. A chance of snow after 1am. Seas around 2 ft.
Saturday
NNE wind around 10 kt. A chance of snow before 2pm. Seas around 2 ft.
Saturday Night
Variable winds 5 kt or less. Mostly cloudy. Seas around 3 ft.
Sunday
WNW wind 5 to 10 kt becoming SSW in the afternoon. A chance of rain and snow after 3pm. Seas around 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...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

Point Forecast: 42.98°N 70.74°W
Last Update: 9:19 am EST Dec 24, 2025
Forecast Valid: 9am EST Dec 24, 2025-6pm EST Dec 30, 2025
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data