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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.

      Low: 45 °F

      Light Wind
      2ft

    • Wednesday

      Wednesday:SSE wind 5 to 8 kt increasing to 7 to 10 kt in the afternoon. A chance of showers, mainly between 11am and 3pm.   Seas around 2 ft.

      High: 56 °F

      ⇑SSE 10kt
      2ft

    • Wednesday Night

      Wednesday Night:S wind 10 to 15 kt. A slight chance of showers after 2am.   Seas around 3 ft.

      Low: 49 °F

      S 15kt
      3ft

    • Thursday

      Thursday:ESE wind around 10 kt. Rain, mainly after 10am.   Seas around 3 ft.

      High: 53 °F

      ESE 10kt
      3ft

    • Thursday Night

      Thursday Night:NE wind around 10 kt. Rain.   Seas around 3 ft.

      Low: 46 °F

      NE 10kt
      3ft

    • Friday

      Friday:NE wind around 10 kt. Showers, mainly before 2pm.   Seas around 3 ft.

      High: 52 °F

      NE 10kt
      3ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. A chance of showers before 9pm.   Seas around 3 ft.

      Low: 47 °F

      Light Wind
      3ft

    • Saturday

      Saturday:W wind 5 to 10 kt becoming SW in the afternoon. Mostly sunny. Seas around 4 ft.

      High: 66 °F

      SW 10kt
      4ft

    • Saturday Night

      Saturday Night:WSW wind around 10 kt. Mostly clear. Seas around 3 ft.

      Low: 54 °F

      WSW 10kt
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:55 pm EDT May 12, 2026
Forecast Valid: 11pm EDT May 12, 2026-6pm EDT May 19, 2026

View Nearby Observations

Detailed Forecast


Overnight
Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.
Wednesday
SSE wind 5 to 8 kt increasing to 7 to 10 kt in the afternoon. A chance of showers, mainly between 11am and 3pm. Seas around 2 ft.
Wednesday Night
S wind 10 to 15 kt. A slight chance of showers after 2am. Seas around 3 ft.
Thursday
ESE wind around 10 kt. Rain, mainly after 10am. Seas around 3 ft.
Thursday Night
NE wind around 10 kt. Rain. Seas around 3 ft.
Friday
NE wind around 10 kt. Showers, mainly before 2pm. Seas around 3 ft.
Friday Night
Variable winds 5 kt or less. A chance of showers before 9pm. Seas around 3 ft.
Saturday
W wind 5 to 10 kt becoming SW in the afternoon. Mostly sunny. Seas around 4 ft.
Saturday Night
WSW wind around 10 kt. Mostly clear. 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: 42.98°N 70.74°W
Last Update: 7:55 pm EDT May 12, 2026
Forecast Valid: 11pm EDT May 12, 2026-6pm EDT May 19, 2026
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