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Gray/Portland, ME Local Forecast Office

4NM E Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SSE wind 10 to 15 kt. A chance of rain after 5am.   Seas 1 to 2 ft.

      Low: 37 °F

      SSE 15kt
      1-2ft

    • Monday

      Monday:SE wind 15 to 20 kt becoming S in the afternoon. Rain, with thunderstorms also possible after 2pm.   Seas around 2 ft.

      High: 40 °F

      SSE 20kt
      2ft

    • Monday Night

      Monday Night:S wind around 20 kt, with gusts as high as 40 kt. Rain and possibly a thunderstorm.   Seas 2 to 3 ft.

      Low: 43 °F

      S 20kt
      2-3ft

    • Tuesday

      Tuesday:W wind 15 to 20 kt, with gusts as high as 30 kt. A chance of rain before 10am.   Seas around 2 ft.

      High: 46 °F

      W 20kt
      2ft

    • Tuesday Night

      Tuesday Night:W wind 15 to 20 kt, with gusts as high as 25 kt. Mostly clear. Seas around 2 ft.

      Low: 23 °F

      W 20kt
      2ft

    • Wednesday

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

      High: 36 °F

      W 10kt
      2ft

    • Wednesday Night

      Wednesday Night:SSW wind 5 to 10 kt. Mostly cloudy. Seas around 2 ft.

      Low: 29 °F

      SSW 10kt
      2ft

    • Thursday

      Thursday:SSE wind around 10 kt. Partly sunny. Seas around 2 ft.

      High: 40 °F

      SSE 10kt
      2ft

    • Thursday Night

      Thursday Night:SSE wind around 10 kt becoming SSW after midnight. Mostly cloudy. Seas around 2 ft.

      Low: 33 °F

      SSE 10kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:25 pm EDT Mar 15, 2026
Forecast Valid: 7pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026

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Detailed Forecast


Tonight
SSE wind 10 to 15 kt. A chance of rain after 5am. Seas 1 to 2 ft.
Monday
SE wind 15 to 20 kt becoming S in the afternoon. Rain, with thunderstorms also possible after 2pm. Seas around 2 ft.
Monday Night
S wind around 20 kt, with gusts as high as 40 kt. Rain and possibly a thunderstorm. Seas 2 to 3 ft.
Tuesday
W wind 15 to 20 kt, with gusts as high as 30 kt. A chance of rain before 10am. Seas around 2 ft.
Tuesday Night
W wind 15 to 20 kt, with gusts as high as 25 kt. Mostly clear. Seas around 2 ft.
Wednesday
W wind 5 to 10 kt. Sunny. Seas around 2 ft.
Wednesday Night
SSW wind 5 to 10 kt. Mostly cloudy. Seas around 2 ft.
Thursday
SSE wind around 10 kt. Partly sunny. Seas around 2 ft.
Thursday Night
SSE wind around 10 kt becoming SSW after midnight. Mostly cloudy. 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: 43.06°N 70.69°W
Last Update: 2:25 pm EDT Mar 15, 2026
Forecast Valid: 7pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026
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