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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]

    • Wednesday

      Wednesday:WNW wind 10 to 15 kt decreasing to 5 to 10 kt. Winds could gust as high as 25 kt. Widespread freezing spray before 9am. Increasing clouds. Seas 3 to 4 ft.

      High: 33 °F

      WNW 15kt⇓
      3-4ft

    • Wednesday Night

      Wednesday Night:S wind around 10 kt. Mostly cloudy. Seas around 3 ft.

      Low: 32 °F

      S 10kt
      3ft

    • Thursday

      Thursday:SSE wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Mostly sunny. Seas around 3 ft.

      High: 37 °F

      ⇑SSE 15kt
      3ft

    • Thursday Night

      Thursday Night:S wind 10 to 15 kt becoming SSW after midnight. Winds could gust as high as 20 kt. Partly cloudy. Seas 3 to 4 ft.

      Low: 35 °F

      S 15kt
      3-4ft

    • Friday

      Friday:SW wind around 10 kt becoming S in the afternoon. Mostly sunny. Seas around 2 ft.

      High: 44 °F

      SW 10kt
      2ft

    • Friday Night

      Friday Night:SSW wind around 10 kt. A chance of rain after 2am. Seas around 2 ft.

      Low: 38 °F

      SSW 10kt
      2ft

    • Saturday

      Saturday:SSE wind around 15 kt becoming SSW in the afternoon. Winds could gust as high as 25 kt. A chance of rain. Seas 2 to 3 ft.

      High: 43 °F

      S 15kt
      2-3ft

    • Saturday Night

      Saturday Night:WSW wind around 15 kt, with gusts as high as 25 kt. A chance of rain. Seas around 3 ft.

      Low: 39 °F

      WSW 15kt
      3ft

    • Sunday

      Sunday:SW wind around 15 kt becoming WNW in the afternoon. Winds could gust as high as 25 kt. A chance of rain. Seas around 3 ft.

      High: 46 °F

      SW 15kt
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:59 am EDT Mar 18, 2026
Forecast Valid: 3am EDT Mar 18, 2026-6pm EDT Mar 24, 2026

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Detailed Forecast


Wednesday
WNW wind 10 to 15 kt decreasing to 5 to 10 kt. Winds could gust as high as 25 kt. Widespread freezing spray before 9am. Increasing clouds. Seas 3 to 4 ft.
Wednesday Night
S wind around 10 kt. Mostly cloudy. Seas around 3 ft.
Thursday
SSE wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Mostly sunny. Seas around 3 ft.
Thursday Night
S wind 10 to 15 kt becoming SSW after midnight. Winds could gust as high as 20 kt. Partly cloudy. Seas 3 to 4 ft.
Friday
SW wind around 10 kt becoming S in the afternoon. Mostly sunny. Seas around 2 ft.
Friday Night
SSW wind around 10 kt. A chance of rain after 2am. Seas around 2 ft.
Saturday
SSE wind around 15 kt becoming SSW in the afternoon. Winds could gust as high as 25 kt. A chance of rain. Seas 2 to 3 ft.
Saturday Night
WSW wind around 15 kt, with gusts as high as 25 kt. A chance of rain. Seas around 3 ft.
Sunday
SW wind around 15 kt becoming WNW in the afternoon. Winds could gust as high as 25 kt. A chance of rain. Seas around 3 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: 1:59 am EDT Mar 18, 2026
Forecast Valid: 3am EDT Mar 18, 2026-6pm EDT Mar 24, 2026
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