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Hazardous Weather Conditions

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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:ESE wind 10 to 15 kt becoming ESE 15 to 20 kt after midnight. Winds could gust as high as 25 kt. Rain before 4am, then a chance of rain after 5am. Seas 1 to 2 ft.

      Low: 39 °F

      ⇑ESE 20kt
      1-2ft

    • Sunday

      Sunday:N wind 10 to 15 kt becoming NW 5 to 8 kt in the afternoon. Winds could gust as high as 20 kt. A chance of rain, mainly before 11am. Seas 2 to 3 ft.

      High: 40 °F

      N 15kt⇓
      2-3ft

    • Sunday Night

      Sunday Night:W wind 15 to 20 kt increasing to 20 to 25 kt after midnight. Winds could gust as high as 35 kt. Partly cloudy. Seas 3 to 4 ft.

      Low: 30 °F

      ⇑W 25kt
      3-4ft

    • Monday

      Monday:W wind 20 to 25 kt decreasing to 15 to 20 kt in the afternoon. Winds could gust as high as 30 kt. Mostly sunny. Seas 2 to 3 ft.

      High: 37 °F

      W 25kt⇓
      2-3ft

    • Monday Night

      Monday Night:WSW wind around 15 kt, with gusts as high as 25 kt. Mostly cloudy. Seas around 2 ft.

      Low: 35 °F

      WSW 15kt
      2ft

    • Tuesday

      Tuesday:WSW wind around 15 kt, with gusts as high as 20 kt. Mostly sunny. Seas around 2 ft.

      High: 42 °F

      WSW 15kt
      2ft

    • Tuesday Night

      Tuesday Night:SSW wind 15 to 20 kt. Cloudy. Seas 2 to 3 ft.

      Low: 40 °F

      SSW 20kt
      2-3ft

    • Wednesday

      Wednesday:SSW wind 15 to 20 kt. Cloudy. Seas around 3 ft.

      High: 45 °F

      SSW 20kt
      3ft

    • Wednesday Night

      Wednesday Night:SW wind 10 to 15 kt becoming W after midnight. A chance of rain. Seas around 2 ft.

      Low: 32 °F

      WSW 15kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:14 pm EST Jan 10, 2026
Forecast Valid: 7pm EST Jan 10, 2026-6pm EST Jan 17, 2026

View Nearby Observations

Detailed Forecast


Tonight
ESE wind 10 to 15 kt becoming ESE 15 to 20 kt after midnight. Winds could gust as high as 25 kt. Rain before 4am, then a chance of rain after 5am. Seas 1 to 2 ft.
Sunday
N wind 10 to 15 kt becoming NW 5 to 8 kt in the afternoon. Winds could gust as high as 20 kt. A chance of rain, mainly before 11am. Seas 2 to 3 ft.
Sunday Night
W wind 15 to 20 kt increasing to 20 to 25 kt after midnight. Winds could gust as high as 35 kt. Partly cloudy. Seas 3 to 4 ft.
Monday
W wind 20 to 25 kt decreasing to 15 to 20 kt in the afternoon. Winds could gust as high as 30 kt. Mostly sunny. Seas 2 to 3 ft.
Monday Night
WSW wind around 15 kt, with gusts as high as 25 kt. Mostly cloudy. Seas around 2 ft.
Tuesday
WSW wind around 15 kt, with gusts as high as 20 kt. Mostly sunny. Seas around 2 ft.
Tuesday Night
SSW wind 15 to 20 kt. Cloudy. Seas 2 to 3 ft.
Wednesday
SSW wind 15 to 20 kt. Cloudy. Seas around 3 ft.
Wednesday Night
SW wind 10 to 15 kt becoming W after midnight. A chance of rain. Seas around 2 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: 42.99°N 70.62°W
Last Update: 7:14 pm EST Jan 10, 2026
Forecast Valid: 7pm EST Jan 10, 2026-6pm EST Jan 17, 2026
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