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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:S wind around 10 kt. A chance of rain, mainly after 5pm.   Seas around 2 ft.

      High: 46 °F

      S 10kt
      2ft

    • Tonight

      Tonight:SSW wind around 10 kt. Rain, mainly before 1am.   Seas 3 to 4 ft.

      Low: 39 °F

      SSW 10kt
      3-4ft

    • Saturday

      Saturday:NW wind around 10 kt. Mostly sunny. Seas around 3 ft.

      High: 46 °F

      NW 10kt
      3ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Increasing clouds. Seas 2 to 3 ft.

      Low: 36 °F

      Light Wind
      2-3ft

    • Sunday

      Sunday:SSE wind 5 to 10 kt. A chance of snow before 9am, then rain and snow likely between 9am and 11am, then rain after 11am.   Seas around 2 ft.

      High: 44 °F

      SSE 10kt
      2ft

    • Sunday Night

      Sunday Night:NNE wind around 10 kt. Rain likely before 3am, then a chance of snow.   Seas 2 to 3 ft.

      Low: 33 °F

      NNE 10kt
      2-3ft

    • Monday

      Monday:NNE wind 10 to 15 kt. A chance of snow.   Seas around 3 ft.

      High: 38 °F

      NNE 15kt
      3ft

    • Monday Night

      Monday Night:N wind around 10 kt. A chance of snow.   Seas 3 to 4 ft.

      Low: 28 °F

      N 10kt
      3-4ft

    • Tuesday

      Tuesday:NW wind around 10 kt becoming W in the afternoon. Mostly sunny. Seas around 4 ft.

      High: 40 °F

      NW 10kt
      4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:22 pm EDT Mar 20, 2026
Forecast Valid: 2pm EDT Mar 20, 2026-6pm EDT Mar 26, 2026

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Detailed Forecast


This Afternoon
S wind around 10 kt. A chance of rain, mainly after 5pm. Seas around 2 ft.
Tonight
SSW wind around 10 kt. Rain, mainly before 1am. Seas 3 to 4 ft.
Saturday
NW wind around 10 kt. Mostly sunny. Seas around 3 ft.
Saturday Night
Variable winds 5 kt or less. Increasing clouds. Seas 2 to 3 ft.
Sunday
SSE wind 5 to 10 kt. A chance of snow before 9am, then rain and snow likely between 9am and 11am, then rain after 11am. Seas around 2 ft.
Sunday Night
NNE wind around 10 kt. Rain likely before 3am, then a chance of snow. Seas 2 to 3 ft.
Monday
NNE wind 10 to 15 kt. A chance of snow. Seas around 3 ft.
Monday Night
N wind around 10 kt. A chance of snow. Seas 3 to 4 ft.
Tuesday
NW wind around 10 kt becoming W in the afternoon. Mostly sunny. Seas around 4 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: 42.98°N 70.74°W
Last Update: 2:22 pm EDT Mar 20, 2026
Forecast Valid: 2pm EDT Mar 20, 2026-6pm EDT Mar 26, 2026
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