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Gray/Portland, ME Local Forecast Office

3NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

      High: 47 °F

      Light Wind
      < 1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

      Low: 30 °F

      Light Wind
      < 1ft

    • Thursday

      Thursday:NNW wind 5 to 8 kt becoming ENE 10 to 15 kt in the afternoon. Winds could gust as high as 25 kt. A slight chance of rain after 5pm.   Seas 1 ft or less.

      High: 39 °F

      ⇑ENE 15kt
      < 1ft

    • Thursday Night

      Thursday Night:ENE wind around 15 kt, with gusts as high as 25 kt. A chance of rain before 9pm, then a chance of rain, snow, and sleet between 9pm and midnight, then snow and sleet after midnight.   Seas 1 ft or less.

      Low: 33 °F

      ENE 15kt
      < 1ft

    • Friday

      Friday:ENE wind 10 to 15 kt, with gusts as high as 25 kt. Rain, snow, and sleet likely before 11am, then a chance of rain and sleet between 11am and 1pm.   Seas 1 ft or less.

      High: 37 °F

      ENE 15kt
      < 1ft

    • Friday Night

      Friday Night:ENE wind 5 to 10 kt becoming SSE after midnight. Cloudy. Seas 1 ft or less.

      Low: 35 °F

      ENE 10kt
      < 1ft

    • Saturday

      Saturday:SSW wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Mostly cloudy. Seas 1 ft or less.

      High: 51 °F

      ⇑SSW 15kt
      < 1ft

    • Saturday Night

      Saturday Night:SSW wind around 10 kt becoming W after midnight. Winds could gust as high as 20 kt. A chance of rain.   Seas 1 ft or less.

      Low: 42 °F

      SSW 10kt
      < 1ft

    • Sunday

      Sunday:Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.

      High: 51 °F

      Light Wind
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:30 am EST Mar 4, 2026
Forecast Valid: 8am EST Mar 4, 2026-6pm EDT Mar 10, 2026

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Detailed Forecast


Today
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Tonight
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Thursday
NNW wind 5 to 8 kt becoming ENE 10 to 15 kt in the afternoon. Winds could gust as high as 25 kt. A slight chance of rain after 5pm. Seas 1 ft or less.
Thursday Night
ENE wind around 15 kt, with gusts as high as 25 kt. A chance of rain before 9pm, then a chance of rain, snow, and sleet between 9pm and midnight, then snow and sleet after midnight. Seas 1 ft or less.
Friday
ENE wind 10 to 15 kt, with gusts as high as 25 kt. Rain, snow, and sleet likely before 11am, then a chance of rain and sleet between 11am and 1pm. Seas 1 ft or less.
Friday Night
ENE wind 5 to 10 kt becoming SSE after midnight. Cloudy. Seas 1 ft or less.
Saturday
SSW wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Mostly cloudy. Seas 1 ft or less.
Saturday Night
SSW wind around 10 kt becoming W after midnight. Winds could gust as high as 20 kt. A chance of rain. Seas 1 ft or less.
Sunday
Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.

*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: 43.02°N 70.73°W
Last Update: 5:30 am EST Mar 4, 2026
Forecast Valid: 8am EST Mar 4, 2026-6pm EDT Mar 10, 2026
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