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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds 5 kt or less. Sunny. Seas around 4 ft.

      High: 41 °F

      Light Wind
      4ft

    • Tonight

      Tonight:SSW wind around 10 kt becoming WSW after midnight. Partly cloudy. Seas around 4 ft.

      Low: 33 °F

      SSW 10kt
      4ft

    • Wednesday

      Wednesday:W wind 5 to 10 kt becoming SSW in the afternoon. Mostly sunny. Seas 3 to 4 ft.

      High: 47 °F

      SSW 10kt
      3-4ft

    • Wednesday Night

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

      Low: 39 °F

      SSW 10kt
      3ft

    • Thursday

      Thursday:SSW wind around 10 kt. A chance of rain before 2pm.   Seas around 2 ft.

      High: 54 °F

      SSW 10kt
      2ft

    • Thursday Night

      Thursday Night:SSW wind around 15 kt. Rain likely, mainly after 10pm.   Seas 2 to 3 ft.

      Low: 41 °F

      SSW 15kt
      2-3ft

    • Friday

      Friday:NW wind around 15 kt. A chance of rain before 8am.   Seas 2 to 3 ft.

      High: 46 °F

      NW 15kt
      2-3ft

    • Friday Night

      Friday Night:NW wind around 10 kt. Mostly clear. Seas around 2 ft.

      Low: 22 °F

      NW 10kt
      2ft

    • Saturday

      Saturday:NNW wind 5 to 10 kt becoming W in the afternoon. Mostly sunny. Seas around 1 ft.

      High: 35 °F

      NNW 10kt
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:39 am EDT Mar 24, 2026
Forecast Valid: 8am EDT Mar 24, 2026-6pm EDT Mar 30, 2026

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Detailed Forecast


Today
Variable winds 5 kt or less. Sunny. Seas around 4 ft.
Tonight
SSW wind around 10 kt becoming WSW after midnight. Partly cloudy. Seas around 4 ft.
Wednesday
W wind 5 to 10 kt becoming SSW in the afternoon. Mostly sunny. Seas 3 to 4 ft.
Wednesday Night
SSW wind around 10 kt. Mostly cloudy. Seas around 3 ft.
Thursday
SSW wind around 10 kt. A chance of rain before 2pm. Seas around 2 ft.
Thursday Night
SSW wind around 15 kt. Rain likely, mainly after 10pm. Seas 2 to 3 ft.
Friday
NW wind around 15 kt. A chance of rain before 8am. Seas 2 to 3 ft.
Friday Night
NW wind around 10 kt. Mostly clear. Seas around 2 ft.
Saturday
NNW wind 5 to 10 kt becoming W in the afternoon. Mostly 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: 42.98°N 70.74°W
Last Update: 2:39 am EDT Mar 24, 2026
Forecast Valid: 8am EDT Mar 24, 2026-6pm EDT Mar 30, 2026
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