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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds 5 kt or less. A slight chance of showers and thunderstorms after 2pm.   Seas 2 to 3 ft.

      High: 80 °F

      Light Wind
      2-3ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.

      Low: 66 °F

      Light Wind
      2ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Mostly sunny. Seas around 2 ft.

      High: 77 °F

      Light Wind
      2ft

    • Saturday Night

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

      Low: 65 °F

      Light Wind
      1ft

    • Sunday

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

      High: 78 °F

      Light Wind
      1ft

    • Sunday Night

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

      Low: 65 °F

      Light Wind
      1ft

    • Monday

      Monday:SW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Sunny. Seas around 1 ft.

      High: 83 °F

      ⇑S 10kt
      1ft

    • Monday Night

      Monday Night:S wind around 10 kt becoming SW after midnight. Partly cloudy. Seas around 2 ft.

      Low: 69 °F

      SSW 10kt
      2ft

    • Tuesday

      Tuesday:WSW wind 5 to 10 kt. Sunny. Seas 1 to 2 ft.

      High: 90 °F

      WSW 10kt
      1-2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:48 am EDT Jul 10, 2026
Forecast Valid: 9am EDT Jul 10, 2026-6pm EDT Jul 16, 2026

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Detailed Forecast


Today
Variable winds 5 kt or less. A slight chance of showers and thunderstorms after 2pm. Seas 2 to 3 ft.
Tonight
Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.
Saturday
Variable winds 5 kt or less. Mostly sunny. Seas around 2 ft.
Saturday Night
Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.
Sunday
Variable winds 5 kt or less. Sunny. Seas around 1 ft.
Sunday Night
Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.
Monday
SW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Sunny. Seas around 1 ft.
Monday Night
S wind around 10 kt becoming SW after midnight. Partly cloudy. Seas around 2 ft.
Tuesday
WSW wind 5 to 10 kt. Sunny. Seas 1 to 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: 42.98°N 70.74°W
Last Update: 1:48 am EDT Jul 10, 2026
Forecast Valid: 9am EDT Jul 10, 2026-6pm EDT Jul 16, 2026
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