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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Monday

      Monday:NNE wind 10 to 15 kt, with gusts as high as 25 kt. A chance of rain and snow showers before 1pm, then a chance of snow showers between 1pm and 2pm, then a chance of rain and snow showers after 2pm.  Patchy fog before 8am.  Seas 4 to 5 ft.

      High: 37 °F

      NNE 15kt
      4-5ft

    • Monday Night

      Monday Night:N wind around 10 kt. A chance of rain and snow showers, mainly before 9pm.   Seas around 5 ft.

      Low: 29 °F

      N 10kt
      5ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Mostly sunny. Seas 4 to 5 ft.

      High: 41 °F

      Light Wind
      4-5ft

    • Tuesday Night

      Tuesday Night:SW wind around 10 kt. Mostly cloudy. Seas around 4 ft.

      Low: 34 °F

      SW 10kt
      4ft

    • Wednesday

      Wednesday:SSW wind 10 to 15 kt. Mostly cloudy. Seas 3 to 4 ft.

      High: 47 °F

      SSW 15kt
      3-4ft

    • Wednesday Night

      Wednesday Night:SW wind around 10 kt. Mostly cloudy. Seas 2 to 3 ft.

      Low: 36 °F

      SW 10kt
      2-3ft

    • Thursday

      Thursday:SW wind around 10 kt becoming S in the morning. A chance of rain after 3pm.   Seas around 2 ft.

      High: 49 °F

      S 10kt
      2ft

    • Thursday Night

      Thursday Night:S wind 10 to 15 kt becoming SW after midnight. A chance of rain before 11pm, then rain and snow likely between 11pm and 5am, then rain likely after 5am.   Seas 2 ft building to 4 ft.

      Low: 39 °F

      SSW 15kt
      Waves Building4ft

    • Friday

      Friday:NW wind around 15 kt. A chance of rain, mixing with snow after 8am, then gradually ending.   Seas 2 to 3 ft.

      High: 45 °F

      NW 15kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:52 pm EDT Mar 22, 2026
Forecast Valid: 2am EDT Mar 23, 2026-6pm EDT Mar 29, 2026

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Detailed Forecast


Monday
NNE wind 10 to 15 kt, with gusts as high as 25 kt. A chance of rain and snow showers before 1pm, then a chance of snow showers between 1pm and 2pm, then a chance of rain and snow showers after 2pm. Patchy fog before 8am. Seas 4 to 5 ft.
Monday Night
N wind around 10 kt. A chance of rain and snow showers, mainly before 9pm. Seas around 5 ft.
Tuesday
Variable winds 5 kt or less. Mostly sunny. Seas 4 to 5 ft.
Tuesday Night
SW wind around 10 kt. Mostly cloudy. Seas around 4 ft.
Wednesday
SSW wind 10 to 15 kt. Mostly cloudy. Seas 3 to 4 ft.
Wednesday Night
SW wind around 10 kt. Mostly cloudy. Seas 2 to 3 ft.
Thursday
SW wind around 10 kt becoming S in the morning. A chance of rain after 3pm. Seas around 2 ft.
Thursday Night
S wind 10 to 15 kt becoming SW after midnight. A chance of rain before 11pm, then rain and snow likely between 11pm and 5am, then rain likely after 5am. Seas 2 ft building to 4 ft.
Friday
NW wind around 15 kt. A chance of rain, mixing with snow after 8am, then gradually ending. Seas 2 to 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: 42.98°N 70.74°W
Last Update: 11:52 pm EDT Mar 22, 2026
Forecast Valid: 2am EDT Mar 23, 2026-6pm EDT Mar 29, 2026
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