Hazardous Weather Conditions

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Gray/Portland, ME Local Forecast Office

10NM S Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.

      Low: 23 °F

      Light Wind
      1ft

    • Wednesday

      Wednesday:NE wind around 10 kt. Increasing clouds. Seas 1 to 2 ft.

      High: 33 °F

      NE 10kt
      1-2ft

    • Wednesday Night

      Wednesday Night:ENE wind 10 to 15 kt becoming ESE after midnight. Winds could gust as high as 25 kt. Snow likely before 4am, then snow, possibly mixed with rain.   Seas 2 to 3 ft.

      Low: 31 °F

      ESE 15kt
      2-3ft

    • Thursday

      Thursday:ESE wind 10 to 15 kt becoming E 5 to 8 kt in the afternoon. Winds could gust as high as 25 kt. Rain and snow before noon, then a chance of rain between noon and 3pm.   Seas 3 ft building to 5 ft.

      High: 41 °F

      ESE 15kt⇓
      Waves Building5ft

    • Thursday Night

      Thursday Night:W wind 15 to 18 kt increasing to 17 to 20 kt after midnight. Winds could gust as high as 30 kt. Partly cloudy. Seas 4 to 5 ft.

      Low: 23 °F

      ⇑W 20kt
      4-5ft

    • Friday

      Friday:WNW wind 15 to 20 kt, with gusts as high as 25 kt. Widespread freezing spray before 11am. Sunny. Seas 3 to 4 ft.

      High: 28 °F

      WNW 20kt
      3-4ft

    • Friday Night

      Friday Night:WNW wind 10 to 15 kt. Widespread freezing spray after 9pm. Mostly cloudy. Seas 3 ft subsiding to 1 ft.

      Low: 17 °F

      WNW 15kt
      3ftWaves Subsiding

    • Saturday

      Saturday:Variable winds 5 kt or less. A chance of snow.   Seas around 1 ft.

      High: 33 °F

      Light Wind
      1ft

    • Saturday Night

      Saturday Night:SSE wind 5 to 10 kt becoming NE after midnight. Snow before 1am, then rain and snow showers.   Seas around 1 ft.

      Low: 29 °F

      NE 10kt
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:19 pm EST Feb 11, 2025
Forecast Valid: 11pm EST Feb 11, 2025-6pm EST Feb 18, 2025

View Nearby Observations

Detailed Forecast


Overnight
Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.
Wednesday
NE wind around 10 kt. Increasing clouds. Seas 1 to 2 ft.
Wednesday Night
ENE wind 10 to 15 kt becoming ESE after midnight. Winds could gust as high as 25 kt. Snow likely before 4am, then snow, possibly mixed with rain. Seas 2 to 3 ft.
Thursday
ESE wind 10 to 15 kt becoming E 5 to 8 kt in the afternoon. Winds could gust as high as 25 kt. Rain and snow before noon, then a chance of rain between noon and 3pm. Seas 3 ft building to 5 ft.
Thursday Night
W wind 15 to 18 kt increasing to 17 to 20 kt after midnight. Winds could gust as high as 30 kt. Partly cloudy. Seas 4 to 5 ft.
Friday
WNW wind 15 to 20 kt, with gusts as high as 25 kt. Widespread freezing spray before 11am. Sunny. Seas 3 to 4 ft.
Friday Night
WNW wind 10 to 15 kt. Widespread freezing spray after 9pm. Mostly cloudy. Seas 3 ft subsiding to 1 ft.
Saturday
Variable winds 5 kt or less. A chance of snow. Seas around 1 ft.
Saturday Night
SSE wind 5 to 10 kt becoming NE after midnight. Snow before 1am, then rain and snow showers. 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: 42.9°N 70.79°W
Last Update: 10:19 pm EST Feb 11, 2025
Forecast Valid: 11pm EST Feb 11, 2025-6pm EST Feb 18, 2025
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