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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:S wind around 15 kt, with gusts as high as 20 kt. Showers and thunderstorms likely before 4am, then rain and possibly a thunderstorm between 4am and 5am, then scattered showers and thunderstorms after 5am.   Seas around 3 ft.

      Low: 61 °F

      S 15kt
      3ft

    • Monday

      Monday:SW wind 5 to 10 kt becoming WNW in the morning. Scattered showers, mainly before 8am.  Patchy fog between 7am and 8am.  Seas 1 to 2 ft.

      High: 70 °F

      SW 10kt
      1-2ft

    • Monday Night

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

      Low: 58 °F

      NW 10kt
      1ft

    • Tuesday

      Tuesday:WNW wind 5 to 8 kt becoming SSE 7 to 10 kt in the afternoon. Sunny. Seas around 1 ft.

      High: 65 °F

      ⇑SSE 10kt
      1ft

    • Tuesday Night

      Tuesday Night:S wind 7 to 10 kt becoming SW 5 to 8 kt after midnight. Mostly clear. Seas 1 to 2 ft.

      Low: 58 °F

      S 10kt⇓
      1-2ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.

      High: 64 °F

      ⇑SSE 10kt
      1-2ft

    • Wednesday Night

      Wednesday Night:S wind 7 to 10 kt decreasing to 5 to 8 kt after midnight. Mostly cloudy. Seas around 2 ft.

      Low: 59 °F

      S 10kt⇓
      2ft

    • Thursday

      Thursday:SSE wind 5 to 10 kt increasing to 15 to 20 kt. Showers likely.   Seas 1 ft building to 3 ft.

      High: 67 °F

      ⇑SSE 20kt
      Waves Building3ft

    • Thursday Night

      Thursday Night:S wind 17 to 20 kt becoming WSW 15 to 18 kt after midnight. Showers likely.   Seas around 3 ft.

      Low: 62 °F

      S 20kt⇓
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:04 pm EDT Jun 14, 2026
Forecast Valid: 12am EDT Jun 15, 2026-6pm EDT Jun 21, 2026

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Detailed Forecast


Overnight
S wind around 15 kt, with gusts as high as 20 kt. Showers and thunderstorms likely before 4am, then rain and possibly a thunderstorm between 4am and 5am, then scattered showers and thunderstorms after 5am. Seas around 3 ft.
Monday
SW wind 5 to 10 kt becoming WNW in the morning. Scattered showers, mainly before 8am. Patchy fog between 7am and 8am. Seas 1 to 2 ft.
Monday Night
NW wind 5 to 10 kt. Mostly clear. Seas around 1 ft.
Tuesday
WNW wind 5 to 8 kt becoming SSE 7 to 10 kt in the afternoon. Sunny. Seas around 1 ft.
Tuesday Night
S wind 7 to 10 kt becoming SW 5 to 8 kt after midnight. Mostly clear. Seas 1 to 2 ft.
Wednesday
Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.
Wednesday Night
S wind 7 to 10 kt decreasing to 5 to 8 kt after midnight. Mostly cloudy. Seas around 2 ft.
Thursday
SSE wind 5 to 10 kt increasing to 15 to 20 kt. Showers likely. Seas 1 ft building to 3 ft.
Thursday Night
S wind 17 to 20 kt becoming WSW 15 to 18 kt after midnight. Showers likely. Seas around 3 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: 8:04 pm EDT Jun 14, 2026
Forecast Valid: 12am EDT Jun 15, 2026-6pm EDT Jun 21, 2026
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