For More Weather Information:

Gray/Portland, ME Local Forecast Office

10NM S Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Monday

      Monday:Variable winds less than 5 kt becoming SE 5 to 10 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.

      High: 76 °F

      ⇑SE 10kt
      1-2ft

    • Monday Night

      Monday Night:S wind 5 to 10 kt becoming SW after midnight. Mostly clear. Seas around 2 ft.

      Low: 66 °F

      S 10kt
      2ft

    • Tuesday

      Tuesday:W wind 5 to 10 kt. Sunny. Seas around 2 ft.

      High: 87 °F

      W 10kt
      2ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.

      Low: 69 °F

      Light Wind
      1ft

    • Wednesday

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

      High: 80 °F

      Light Wind
      1ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. A chance of showers after 2am.   Seas around 1 ft.

      Low: 73 °F

      Light Wind
      1ft

    • Thursday

      Thursday:Variable winds 5 kt or less. A chance of showers.   Seas around 1 ft.

      High: 67 °F

      Light Wind
      1ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. A chance of showers.   Seas 1 to 2 ft.

      Low: 63 °F

      Light Wind
      1-2ft

    • Friday

      Friday:E wind 5 to 10 kt. A chance of showers.   Seas around 1 ft.

      High: 66 °F

      E 10kt
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:37 pm EDT Jun 22, 2025
Forecast Valid: 1am EDT Jun 23, 2025-6pm EDT Jun 29, 2025

View Nearby Observations

Detailed Forecast


Monday
Variable winds less than 5 kt becoming SE 5 to 10 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.
Monday Night
S wind 5 to 10 kt becoming SW after midnight. Mostly clear. Seas around 2 ft.
Tuesday
W wind 5 to 10 kt. Sunny. Seas around 2 ft.
Tuesday Night
Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.
Wednesday
Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.
Wednesday Night
Variable winds 5 kt or less. A chance of showers after 2am. Seas around 1 ft.
Thursday
Variable winds 5 kt or less. A chance of showers. Seas around 1 ft.
Thursday Night
Variable winds 5 kt or less. A chance of showers. Seas 1 to 2 ft.
Friday
E wind 5 to 10 kt. A chance of showers. 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...

ABOUT THIS FORECAST

Point Forecast: 42.9°N 70.79°W
Last Update: 10:37 pm EDT Jun 22, 2025
Forecast Valid: 1am EDT Jun 23, 2025-6pm EDT Jun 29, 2025
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data