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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Today

      Today:NNW wind around 15 kt, with gusts as high as 25 kt. Increasing clouds. Seas 3 to 4 ft.

      High: 54 °F

      NNW 15kt
      3-4ft

    • Tonight

      Tonight:N wind around 15 kt, with gusts as high as 25 kt. A slight chance of showers before 7pm.   Seas around 3 ft.

      Low: 45 °F

      N 15kt
      3ft

    • Friday

      Friday:N wind around 10 kt. Sunny. Seas around 3 ft.

      High: 59 °F

      N 10kt
      3ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Mostly clear. Seas around 3 ft.

      Low: 44 °F

      Light Wind
      3ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Sunny. Seas 3 to 4 ft.

      High: 58 °F

      Light Wind
      3-4ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Partly cloudy. Seas around 4 ft.

      Low: 49 °F

      Light Wind
      4ft

    • Sunday

      Sunday:SSW wind 5 to 8 kt becoming SSE 7 to 10 kt in the afternoon. Mostly sunny. Seas 3 to 4 ft.

      High: 61 °F

      ⇑SSE 10kt
      3-4ft

    • Sunday Night

      Sunday Night:S wind around 10 kt. A chance of showers.   Seas 3 to 4 ft.

      Low: 55 °F

      S 10kt
      3-4ft

    • Monday

      Monday:S wind 10 to 15 kt becoming WSW in the morning. Showers likely.   Seas 3 to 4 ft.

      High: 61 °F

      WSW 15kt
      3-4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:16 am EDT Oct 16, 2025
Forecast Valid: 10am EDT Oct 16, 2025-6pm EDT Oct 22, 2025

View Nearby Observations

Detailed Forecast


Today
NNW wind around 15 kt, with gusts as high as 25 kt. Increasing clouds. Seas 3 to 4 ft.
Tonight
N wind around 15 kt, with gusts as high as 25 kt. A slight chance of showers before 7pm. Seas around 3 ft.
Friday
N wind around 10 kt. Sunny. Seas around 3 ft.
Friday Night
Variable winds 5 kt or less. Mostly clear. Seas around 3 ft.
Saturday
Variable winds 5 kt or less. Sunny. Seas 3 to 4 ft.
Saturday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 4 ft.
Sunday
SSW wind 5 to 8 kt becoming SSE 7 to 10 kt in the afternoon. Mostly sunny. Seas 3 to 4 ft.
Sunday Night
S wind around 10 kt. A chance of showers. Seas 3 to 4 ft.
Monday
S wind 10 to 15 kt becoming WSW in the morning. Showers likely. Seas 3 to 4 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: 42.98°N 70.74°W
Last Update: 6:16 am EDT Oct 16, 2025
Forecast Valid: 10am EDT Oct 16, 2025-6pm EDT Oct 22, 2025
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