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Gray/Portland, ME Local Forecast Office

4NM E Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Today

      Today:S wind 5 to 10 kt becoming WNW in the afternoon. Rain, with thunderstorms also possible after 11am.  Areas of dense fog before noon.  Seas 1 to 2 ft.

      High: 46 °F

      WNW 10kt
      1-2ft

    • Tonight

      Tonight:W wind around 10 kt. Rain likely, mainly before 7pm.   Seas around 2 ft.

      Low: 36 °F

      W 10kt
      2ft

    • Monday

      Monday:Variable winds 5 kt or less. A chance of showers, mainly after 2pm.   Seas around 1 ft.

      High: 46 °F

      Light Wind
      1ft

    • Monday Night

      Monday Night:N wind around 10 kt. Partly cloudy. Seas around 1 ft.

      Low: 33 °F

      N 10kt
      1ft

    • Tuesday

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

      High: 41 °F

      Light Wind
      1ft

    • Tuesday Night

      Tuesday Night:SSE wind around 10 kt becoming SSW after midnight. Partly cloudy. Seas around 1 ft.

      Low: 37 °F

      S 10kt
      1ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.

      High: 47 °F

      Light Wind
      1ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.

      Low: 40 °F

      Light Wind
      1ft

    • Thursday

      Thursday:Variable winds 5 kt or less. Partly sunny. Seas around 1 ft.

      High: 52 °F

      Light Wind
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:25 am EDT Apr 19, 2026
Forecast Valid: 6am EDT Apr 19, 2026-6pm EDT Apr 25, 2026

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Detailed Forecast


Today
S wind 5 to 10 kt becoming WNW in the afternoon. Rain, with thunderstorms also possible after 11am. Areas of dense fog before noon. Seas 1 to 2 ft.
Tonight
W wind around 10 kt. Rain likely, mainly before 7pm. Seas around 2 ft.
Monday
Variable winds 5 kt or less. A chance of showers, mainly after 2pm. Seas around 1 ft.
Monday Night
N wind around 10 kt. Partly cloudy. Seas around 1 ft.
Tuesday
Variable winds 5 kt or less. Sunny. Seas around 1 ft.
Tuesday Night
SSE wind around 10 kt becoming SSW after midnight. Partly cloudy. Seas around 1 ft.
Wednesday
Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.
Wednesday Night
Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.
Thursday
Variable winds 5 kt or less. Partly sunny. Seas around 1 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: 6:25 am EDT Apr 19, 2026
Forecast Valid: 6am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
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