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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Today

      Today:NE wind 5 to 10 kt becoming SE in the afternoon. Mostly sunny. Seas around 1 ft.

      High: 53 °F

      SE 10kt
      1ft

    • Tonight

      Tonight:S wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Increasing clouds. Seas around 1 ft.

      Low: 49 °F

      S 10kt⇓
      1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Cloudy. Seas around 1 ft.

      High: 53 °F

      Light Wind
      1ft

    • Saturday Night

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

      Low: 49 °F

      Light Wind
      1ft

    • Sunday

      Sunday:ESE wind around 10 kt. Showers, mainly after 11am.   Seas around 1 ft.

      High: 52 °F

      ESE 10kt
      1ft

    • Sunday Night

      Sunday Night:E wind 10 to 15 kt. Showers.   Seas 2 to 3 ft.

      Low: 50 °F

      E 15kt
      2-3ft

    • Memorial Day

      Memorial Day:N wind 5 to 10 kt becoming NW in the afternoon. Showers likely, mainly before 9am.   Seas around 3 ft.

      High: 57 °F

      N 10kt
      3ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Mostly cloudy. Seas 2 to 3 ft.

      Low: 52 °F

      Light Wind
      2-3ft

    • Tuesday

      Tuesday:WNW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Mostly sunny. Seas around 2 ft.

      High: 63 °F

      ⇑S 10kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:38 am EDT May 22, 2026
Forecast Valid: 10am EDT May 22, 2026-6pm EDT May 28, 2026

View Nearby Observations

Detailed Forecast


Today
NE wind 5 to 10 kt becoming SE in the afternoon. Mostly sunny. Seas around 1 ft.
Tonight
S wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Increasing clouds. Seas around 1 ft.
Saturday
Variable winds 5 kt or less. Cloudy. Seas around 1 ft.
Saturday Night
Variable winds 5 kt or less. A chance of showers after 5am. Seas around 1 ft.
Sunday
ESE wind around 10 kt. Showers, mainly after 11am. Seas around 1 ft.
Sunday Night
E wind 10 to 15 kt. Showers. Seas 2 to 3 ft.
Memorial Day
N wind 5 to 10 kt becoming NW in the afternoon. Showers likely, mainly before 9am. Seas around 3 ft.
Monday Night
Variable winds 5 kt or less. Mostly cloudy. Seas 2 to 3 ft.
Tuesday
WNW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Mostly sunny. 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.
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ABOUT THIS FORECAST

Point Forecast: 42.99°N 70.62°W
Last Update: 6:38 am EDT May 22, 2026
Forecast Valid: 10am EDT May 22, 2026-6pm EDT May 28, 2026
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