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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Saturday

      Saturday:S wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Areas of fog before 11am.  Seas 5 to 6 ft.

      High: 47 °F

      ⇑S 15kt
      5-6ft

    • Saturday Night

      Saturday Night:SSW wind 10 to 15 kt. Rain likely before 3am.   Seas around 5 ft.

      Low: 43 °F

      SSW 15kt
      5ft

    • Sunday

      Sunday:SW wind around 10 kt becoming W in the afternoon. A slight chance of rain between 7am and 11am.   Seas 4 to 5 ft.

      High: 53 °F

      W 10kt
      4-5ft

    • Sunday Night

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

      Low: 38 °F

      WSW 10kt
      3ft

    • Monday

      Monday:SSW wind 5 to 10 kt. Mostly sunny. Seas around 3 ft.

      High: 57 °F

      SSW 10kt
      3ft

    • Monday Night

      Monday Night:SW wind around 10 kt. Mostly clear. Seas around 3 ft.

      Low: 41 °F

      SW 10kt
      3ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Sunny. Seas around 2 ft.

      High: 59 °F

      Light Wind
      2ft

    • Tuesday Night

      Tuesday Night:SSE wind 5 to 10 kt becoming ENE after midnight. Partly cloudy. Seas around 2 ft.

      Low: 39 °F

      E 10kt
      2ft

    • Wednesday

      Wednesday:E wind around 10 kt becoming ESE in the afternoon. A chance of rain.   Seas 2 to 3 ft.

      High: 47 °F

      ESE 10kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:27 am EST Mar 7, 2026
Forecast Valid: 2am EST Mar 7, 2026-6pm EDT Mar 13, 2026

View Nearby Observations

Detailed Forecast


Saturday
S wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Areas of fog before 11am. Seas 5 to 6 ft.
Saturday Night
SSW wind 10 to 15 kt. Rain likely before 3am. Seas around 5 ft.
Sunday
SW wind around 10 kt becoming W in the afternoon. A slight chance of rain between 7am and 11am. Seas 4 to 5 ft.
Sunday Night
WSW wind around 10 kt. Mostly clear. Seas around 3 ft.
Monday
SSW wind 5 to 10 kt. Mostly sunny. Seas around 3 ft.
Monday Night
SW wind around 10 kt. Mostly clear. Seas around 3 ft.
Tuesday
Variable winds 5 kt or less. Sunny. Seas around 2 ft.
Tuesday Night
SSE wind 5 to 10 kt becoming ENE after midnight. Partly cloudy. Seas around 2 ft.
Wednesday
E wind around 10 kt becoming ESE in the afternoon. A chance of rain. 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: 1:27 am EST Mar 7, 2026
Forecast Valid: 2am EST Mar 7, 2026-6pm EDT Mar 13, 2026
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