National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

For More Weather Information:

Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:WNW wind 15 to 20 kt. Widespread freezing spray. Mostly clear. Seas around 2 ft.

      Low: 4 °F

      WNW 20kt
      2ft

    • Saturday

      Saturday:WNW wind 10 to 15 kt. Widespread freezing spray. Sunny. Seas around 2 ft.

      High: 14 °F

      WNW 15kt
      2ft

    • Saturday Night

      Saturday Night:WNW wind 5 to 10 kt. Widespread freezing spray. Increasing clouds. Seas 1 to 2 ft.

      Low: 6 °F

      WNW 10kt
      1-2ft

    • Sunday

      Sunday:NNW wind 5 to 10 kt becoming NE in the afternoon. Snow, mainly after 2pm. The snow could be heavy at times. Widespread freezing spray before noon. Seas around 1 ft.

      High: 27 °F

      NE 10kt
      1ft

    • Sunday Night

      Sunday Night:ENE wind 10 to 15 kt increasing to 15 to 20 kt after midnight. Winds could gust as high as 30 kt. Snow. The snow could be heavy at times. Widespread freezing spray before 1am, then Widespread freezing spray after 3am. Seas 1 ft building to 5 ft.

      Low: 19 °F

      ⇑ENE 20kt
      Waves Building5ft

    • Monday

      Monday:N wind 15 to 20 kt, with gusts as high as 25 kt. Snow. Widespread freezing spray. Seas 5 ft building to 7 ft.

      High: 26 °F

      N 20kt
      Waves Building7ft

    • Monday Night

      Monday Night:NNW wind around 15 kt becoming WNW after midnight. Winds could gust as high as 25 kt. Snow likely before 1am. Widespread freezing spray. Seas 7 to 8 ft.

      Low: 12 °F

      WNW 15kt
      7-8ft

    • Tuesday

      Tuesday:WNW wind around 15 kt. Widespread freezing spray. Mostly sunny. Seas 7 ft subsiding to 5 ft.

      High: 22 °F

      WNW 15kt
      7ftWaves Subsiding

    • Tuesday Night

      Tuesday Night:W wind around 10 kt. Widespread freezing spray. Partly cloudy. Seas 5 ft subsiding to 3 ft.

      Low: 12 °F

      W 10kt
      5ftWaves Subsiding


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:33 pm EST Jan 23, 2026
Forecast Valid: 8pm EST Jan 23, 2026-6pm EST Jan 30, 2026

View Nearby Observations

Detailed Forecast


Tonight
WNW wind 15 to 20 kt. Widespread freezing spray. Mostly clear. Seas around 2 ft.
Saturday
WNW wind 10 to 15 kt. Widespread freezing spray. Sunny. Seas around 2 ft.
Saturday Night
WNW wind 5 to 10 kt. Widespread freezing spray. Increasing clouds. Seas 1 to 2 ft.
Sunday
NNW wind 5 to 10 kt becoming NE in the afternoon. Snow, mainly after 2pm. The snow could be heavy at times. Widespread freezing spray before noon. Seas around 1 ft.
Sunday Night
ENE wind 10 to 15 kt increasing to 15 to 20 kt after midnight. Winds could gust as high as 30 kt. Snow. The snow could be heavy at times. Widespread freezing spray before 1am, then Widespread freezing spray after 3am. Seas 1 ft building to 5 ft.
Monday
N wind 15 to 20 kt, with gusts as high as 25 kt. Snow. Widespread freezing spray. Seas 5 ft building to 7 ft.
Monday Night
NNW wind around 15 kt becoming WNW after midnight. Winds could gust as high as 25 kt. Snow likely before 1am. Widespread freezing spray. Seas 7 to 8 ft.
Tuesday
WNW wind around 15 kt. Widespread freezing spray. Mostly sunny. Seas 7 ft subsiding to 5 ft.
Tuesday Night
W wind around 10 kt. Widespread freezing spray. Partly cloudy. Seas 5 ft subsiding to 3 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: 12:33 pm EST Jan 23, 2026
Forecast Valid: 8pm EST Jan 23, 2026-6pm EST Jan 30, 2026
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