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

For More Weather Information:

Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:NNE wind 12 to 15 kt becoming N 10 to 13 kt. Showers likely and possibly a thunderstorm before 7pm, then scattered showers and thunderstorms between 7pm and 8pm. Seas around 2 ft.

      Low: 55 °F

      NNE 15kt⇓
      2ft

    • Monday

      Monday:N wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas 1 to 2 ft.

      High: 63 °F

      N 10kt
      1-2ft

    • Monday Night

      Monday Night:SSW wind 5 to 10 kt becoming WSW after midnight. Mostly clear. Seas around 1 ft.

      Low: 57 °F

      SSW 10kt
      1ft

    • Tuesday

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

      High: 72 °F

      S 10kt
      1ft

    • Tuesday Night

      Tuesday Night:S wind around 10 kt becoming SW after midnight. Partly cloudy. Seas around 1 ft.

      Low: 59 °F

      S 10kt
      1ft

    • Wednesday

      Wednesday:SW wind 5 to 10 kt becoming S in the afternoon. Partly sunny. Seas around 1 ft.

      High: 76 °F

      S 10kt
      1ft

    • Wednesday Night

      Wednesday Night:S wind around 10 kt. A chance of showers after 8pm. Seas around 2 ft.

      Low: 62 °F

      S 10kt
      2ft

    • Thursday

      Thursday:WSW wind 5 to 10 kt becoming ENE in the afternoon. A chance of showers. Seas around 1 ft.

      High: 67 °F

      WSW 10kt
      1ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.

      Low: 61 °F

      Light Wind
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:26 pm EDT Jun 7, 2026
Forecast Valid: 6pm EDT Jun 7, 2026-6pm EDT Jun 14, 2026

View Nearby Observations

Detailed Forecast


Tonight
NNE wind 12 to 15 kt becoming N 10 to 13 kt. Showers likely and possibly a thunderstorm before 7pm, then scattered showers and thunderstorms between 7pm and 8pm. Seas around 2 ft.
Monday
N wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas 1 to 2 ft.
Monday Night
SSW wind 5 to 10 kt becoming WSW after midnight. Mostly clear. Seas around 1 ft.
Tuesday
W wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas around 1 ft.
Tuesday Night
S wind around 10 kt becoming SW after midnight. Partly cloudy. Seas around 1 ft.
Wednesday
SW wind 5 to 10 kt becoming S in the afternoon. Partly sunny. Seas around 1 ft.
Wednesday Night
S wind around 10 kt. A chance of showers after 8pm. Seas around 2 ft.
Thursday
WSW wind 5 to 10 kt becoming ENE in the afternoon. A chance of showers. Seas around 1 ft.
Thursday Night
Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.

Winds and seas higher in and near tstms.

*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: 42.99°N 70.62°W
Last Update: 2:26 pm EDT Jun 7, 2026
Forecast Valid: 6pm EDT Jun 7, 2026-6pm EDT Jun 14, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data