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Hazardous Weather Conditions

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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Today

      Today:ENE wind around 10 kt. A chance of showers, mainly after 2pm. Patchy fog after 1pm. Seas around 2 ft.

      High: 41 °F

      ENE 10kt
      2ft

    • Tonight

      Tonight:SE wind 5 to 8 kt becoming SSW 10 to 15 kt after midnight. A chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then a chance of showers after 2am. Areas of dense fog. Seas 2 to 3 ft.

      Low: 41 °FRising Temperatures

      ⇑SSW 15kt
      2-3ft

    • Thursday

      Thursday:W wind around 15 kt, with gusts as high as 20 kt. A chance of rain. Patchy dense fog before 9am. Seas 3 to 4 ft.

      High: 48 °FFalling Temperatures

      W 15kt
      3-4ft

    • Thursday Night

      Thursday Night:WNW wind 10 to 15 kt. A chance of snow before 7pm. Seas 2 to 3 ft.

      Low: 30 °F

      WNW 15kt
      2-3ft

    • Friday

      Friday:W wind around 10 kt becoming SSW in the afternoon. Mostly sunny. Seas around 2 ft.

      High: 42 °FFalling Temperatures

      SSW 10kt
      2ft

    • Friday Night

      Friday Night:S wind around 15 kt, with gusts as high as 25 kt. A chance of rain. Seas 3 to 4 ft.

      Low: 36 °F

      S 15kt
      3-4ft

    • Saturday

      Saturday:W wind 15 to 20 kt, with gusts as high as 30 kt. Partly sunny. Seas 3 to 4 ft.

      High: 44 °FFalling Temperatures

      W 20kt
      3-4ft

    • Saturday Night

      Saturday Night:W wind 10 to 15 kt. Partly cloudy. Seas 1 to 2 ft.

      Low: 28 °F

      W 15kt
      1-2ft

    • Sunday

      Sunday:WNW wind 5 to 10 kt becoming ESE in the afternoon. Mostly cloudy. Seas around 1 ft.

      High: 42 °FFalling Temperatures

      SSE 10kt
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:25 am EDT Mar 11, 2026
Forecast Valid: 11am EDT Mar 11, 2026-6pm EDT Mar 17, 2026

View Nearby Observations

Detailed Forecast


Today
ENE wind around 10 kt. A chance of showers, mainly after 2pm. Patchy fog after 1pm. Seas around 2 ft.
Tonight
SE wind 5 to 8 kt becoming SSW 10 to 15 kt after midnight. A chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then a chance of showers after 2am. Areas of dense fog. Seas 2 to 3 ft.
Thursday
W wind around 15 kt, with gusts as high as 20 kt. A chance of rain. Patchy dense fog before 9am. Seas 3 to 4 ft.
Thursday Night
WNW wind 10 to 15 kt. A chance of snow before 7pm. Seas 2 to 3 ft.
Friday
W wind around 10 kt becoming SSW in the afternoon. Mostly sunny. Seas around 2 ft.
Friday Night
S wind around 15 kt, with gusts as high as 25 kt. A chance of rain. Seas 3 to 4 ft.
Saturday
W wind 15 to 20 kt, with gusts as high as 30 kt. Partly sunny. Seas 3 to 4 ft.
Saturday Night
W wind 10 to 15 kt. Partly cloudy. Seas 1 to 2 ft.
Sunday
WNW wind 5 to 10 kt becoming ESE in the afternoon. Mostly cloudy. 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: 8:25 am EDT Mar 11, 2026
Forecast Valid: 11am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
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