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Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Tonight

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

      Low: 60 °F

      Light Wind
      1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas around 1 ft.

      High: 73 °F

      ⇑SSE 10kt
      1ft

    • Saturday Night

      Saturday Night:SSW wind 10 to 15 kt. A slight chance of showers after 3am.   Seas around 2 ft.

      Low: 67 °F

      SSW 15kt
      2ft

    • Sunday

      Sunday:SSW wind around 10 kt. A chance of showers between 8am and 1pm, then a chance of showers and thunderstorms after 1pm.   Seas around 2 ft.

      High: 74 °F

      SSW 10kt
      2ft

    • Sunday Night

      Sunday Night:NW wind 5 to 10 kt. A chance of showers and thunderstorms before 9pm.   Seas 1 to 2 ft.

      Low: 63 °F

      NW 10kt
      1-2ft

    • Monday

      Monday:NNW wind 5 to 10 kt. Sunny. Seas around 1 ft.

      High: 71 °F

      NNW 10kt
      1ft

    • Monday Night

      Monday Night:NNW wind 5 to 10 kt. Mostly clear. Seas around 1 ft.

      Low: 59 °F

      NNW 10kt
      1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Sunny. Seas around 1 ft.

      High: 69 °F

      Light Wind
      1ft

    • Tuesday Night

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

      Low: 60 °F

      S 10kt
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:38 pm EDT Jul 18, 2025
Forecast Valid: 7pm EDT Jul 18, 2025-6pm EDT Jul 25, 2025

View Nearby Observations

Detailed Forecast


Tonight
Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.
Saturday
Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas around 1 ft.
Saturday Night
SSW wind 10 to 15 kt. A slight chance of showers after 3am. Seas around 2 ft.
Sunday
SSW wind around 10 kt. A chance of showers between 8am and 1pm, then a chance of showers and thunderstorms after 1pm. Seas around 2 ft.
Sunday Night
NW wind 5 to 10 kt. A chance of showers and thunderstorms before 9pm. Seas 1 to 2 ft.
Monday
NNW wind 5 to 10 kt. Sunny. Seas around 1 ft.
Monday Night
NNW wind 5 to 10 kt. Mostly clear. Seas around 1 ft.
Tuesday
Variable winds 5 kt or less. Sunny. Seas around 1 ft.
Tuesday Night
S wind 5 to 10 kt becoming WSW after midnight. Mostly clear. 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.
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ABOUT THIS FORECAST

Point Forecast: 42.99°N 70.62°W
Last Update: 6:38 pm EDT Jul 18, 2025
Forecast Valid: 7pm EDT Jul 18, 2025-6pm EDT Jul 25, 2025
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