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Hazardous Weather Conditions

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Gray/Portland, ME Local Forecast Office

3NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Today

      Today:WNW wind around 15 kt, with gusts as high as 25 kt. A chance of rain before 3pm, then a chance of rain and snow. Patchy fog before 10am. Seas 1 ft or less.

      High: 54 °FFalling Temperatures

      WNW 15kt
      < 1ft

    • Tonight

      Tonight:WNW wind around 15 kt, with gusts as high as 25 kt. A chance of snow, mainly before 7pm. Seas 1 ft or less.

      Low: 28 °F

      WNW 15kt
      < 1ft

    • Friday

      Friday:W wind 10 to 15 kt becoming S in the afternoon. Winds could gust as high as 25 kt. Increasing clouds. Seas 1 ft or less.

      High: 41 °F

      S 15kt
      < 1ft

    • Friday Night

      Friday Night:S wind around 15 kt, with gusts as high as 30 kt. A chance of snow between 8pm and midnight, then a chance of rain after midnight. Seas 1 ft or less.

      Low: 35 °F

      S 15kt
      < 1ft

    • Saturday

      Saturday:W wind 15 to 20 kt, with gusts as high as 30 kt. Mostly sunny. Seas 1 ft or less.

      High: 45 °F

      W 20kt
      < 1ft

    • Saturday Night

      Saturday Night:W wind 10 to 15 kt, with gusts as high as 30 kt. Partly cloudy. Seas 1 ft or less.

      Low: 30 °F

      W 15kt
      < 1ft

    • Sunday

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

      High: 41 °F

      SE 10kt
      < 1ft

    • Sunday Night

      Sunday Night:SE wind 10 to 15 kt, with gusts as high as 25 kt. Rain likely. Seas 1 ft building to 4 ft.

      Low: 37 °F

      SE 15kt
      Waves Building4ft

    • Monday

      Monday:S wind 15 to 20 kt, with gusts as high as 30 kt. Rain. Seas 6 to 7 ft.

      High: 55 °F

      S 20kt
      6-7ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:48 am EDT Mar 12, 2026
Forecast Valid: 9am EDT Mar 12, 2026-6pm EDT Mar 18, 2026

View Nearby Observations

Detailed Forecast


Today
WNW wind around 15 kt, with gusts as high as 25 kt. A chance of rain before 3pm, then a chance of rain and snow. Patchy fog before 10am. Seas 1 ft or less.
Tonight
WNW wind around 15 kt, with gusts as high as 25 kt. A chance of snow, mainly before 7pm. Seas 1 ft or less.
Friday
W wind 10 to 15 kt becoming S in the afternoon. Winds could gust as high as 25 kt. Increasing clouds. Seas 1 ft or less.
Friday Night
S wind around 15 kt, with gusts as high as 30 kt. A chance of snow between 8pm and midnight, then a chance of rain after midnight. Seas 1 ft or less.
Saturday
W wind 15 to 20 kt, with gusts as high as 30 kt. Mostly sunny. Seas 1 ft or less.
Saturday Night
W wind 10 to 15 kt, with gusts as high as 30 kt. Partly cloudy. Seas 1 ft or less.
Sunday
WNW wind 5 to 10 kt becoming ESE in the afternoon. Mostly cloudy. Seas 1 ft or less.
Sunday Night
SE wind 10 to 15 kt, with gusts as high as 25 kt. Rain likely. Seas 1 ft building to 4 ft.
Monday
S wind 15 to 20 kt, with gusts as high as 30 kt. Rain. Seas 6 to 7 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: 43.02°N 70.73°W
Last Update: 6:48 am EDT Mar 12, 2026
Forecast Valid: 9am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
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