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Hazardous Weather Conditions

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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:W wind 10 to 15 kt, with gusts as high as 20 kt. Clear. Seas around 2 ft.

      Low: 37 °F

      W 15kt
      2ft

    • Monday

      Monday:W wind 5 to 10 kt becoming WNW in the afternoon. A chance of showers, mainly after 3pm. Seas 1 to 2 ft.

      High: 45 °F

      W 10kt
      1-2ft

    • Monday Night

      Monday Night:N wind 10 to 13 kt increasing to 12 to 15 kt after midnight. Winds could gust as high as 20 kt. A slight chance of showers before 8pm. Seas 1 to 2 ft.

      Low: 36 °F

      ⇑N 15kt
      1-2ft

    • Tuesday

      Tuesday:N wind 5 to 10 kt becoming SE in the afternoon. Mostly sunny. Seas around 1 ft.

      High: 41 °F

      N 10kt
      1ft

    • Tuesday Night

      Tuesday Night:SSE wind 10 to 15 kt becoming SSW after midnight. Partly cloudy. Seas around 2 ft.

      Low: 39 °F

      S 15kt
      2ft

    • Wednesday

      Wednesday:S wind around 10 kt. Mostly cloudy. Seas around 2 ft.

      High: 45 °F

      S 10kt
      2ft

    • Wednesday Night

      Wednesday Night:S wind around 10 kt becoming W after midnight. Mostly cloudy. Seas around 2 ft.

      Low: 41 °F

      S 10kt
      2ft

    • Thursday

      Thursday:WNW wind 5 to 10 kt becoming ENE in the afternoon. Partly sunny. Seas 1 to 2 ft.

      High: 49 °F

      WNW 10kt
      1-2ft

    • Thursday Night

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

      Low: 42 °F

      Light Wind
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:06 pm EDT Apr 19, 2026
Forecast Valid: 11pm EDT Apr 19, 2026-6pm EDT Apr 26, 2026

View Nearby Observations

Detailed Forecast


Overnight
W wind 10 to 15 kt, with gusts as high as 20 kt. Clear. Seas around 2 ft.
Monday
W wind 5 to 10 kt becoming WNW in the afternoon. A chance of showers, mainly after 3pm. Seas 1 to 2 ft.
Monday Night
N wind 10 to 13 kt increasing to 12 to 15 kt after midnight. Winds could gust as high as 20 kt. A slight chance of showers before 8pm. Seas 1 to 2 ft.
Tuesday
N wind 5 to 10 kt becoming SE in the afternoon. Mostly sunny. Seas around 1 ft.
Tuesday Night
SSE wind 10 to 15 kt becoming SSW after midnight. Partly cloudy. Seas around 2 ft.
Wednesday
S wind around 10 kt. Mostly cloudy. Seas around 2 ft.
Wednesday Night
S wind around 10 kt becoming W after midnight. Mostly cloudy. Seas around 2 ft.
Thursday
WNW wind 5 to 10 kt becoming ENE in the afternoon. Partly sunny. Seas 1 to 2 ft.
Thursday Night
Variable winds 5 kt or less. Mostly cloudy. 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: 42.99°N 70.62°W
Last Update: 7:06 pm EDT Apr 19, 2026
Forecast Valid: 11pm EDT Apr 19, 2026-6pm EDT Apr 26, 2026
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