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Hazardous Weather Conditions

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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Late Afternoon

      Late Afternoon:WNW wind around 10 kt. A chance of rain and snow. Seas around 3 ft.

      High: 39 °F

      WNW 10kt
      3ft

    • Tonight

      Tonight:NW wind around 10 kt. A chance of snow, mainly before 7pm. Seas 2 to 3 ft.

      Low: 28 °F

      NW 10kt
      2-3ft

    • Friday

      Friday:W wind 5 to 10 kt becoming S in the afternoon. A slight chance of rain and snow after 5pm. Seas around 2 ft.

      High: 41 °F

      S 10kt
      2ft

    • Friday Night

      Friday Night:S wind around 15 kt. A chance of rain and snow before 8pm, then a chance of snow between 8pm and 11pm, then a chance of rain after 11pm. Seas 3 to 4 ft.

      Low: 36 °F

      S 15kt
      3-4ft

    • Saturday

      Saturday:W wind 15 to 18 kt increasing to 17 to 20 kt in the afternoon. Winds could gust as high as 30 kt. Mostly sunny. Seas around 3 ft.

      High: 44 °F

      ⇑W 20kt
      3ft

    • Saturday Night

      Saturday Night:WNW wind 12 to 15 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 25 kt. Mostly clear. Seas 1 to 2 ft.

      Low: 29 °F

      WNW 15kt⇓
      1-2ft

    • Sunday

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

      High: 40 °F

      Light Wind
      1ft

    • Sunday Night

      Sunday Night:SE wind 10 to 15 kt. A chance of rain. Seas 1 ft building to 3 ft.

      Low: 37 °F

      SE 15kt
      Waves Building3ft

    • Monday

      Monday:SSE wind 15 to 20 kt, with gusts as high as 25 kt. Rain. Seas 5 ft building to 8 ft.

      High: 55 °F

      SSE 20kt
      Waves Building8ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:28 pm EDT Mar 12, 2026
Forecast Valid: 5pm EDT Mar 12, 2026-6pm EDT Mar 19, 2026

View Nearby Observations

Detailed Forecast


Late Afternoon
WNW wind around 10 kt. A chance of rain and snow. Seas around 3 ft.
Tonight
NW wind around 10 kt. A chance of snow, mainly before 7pm. Seas 2 to 3 ft.
Friday
W wind 5 to 10 kt becoming S in the afternoon. A slight chance of rain and snow after 5pm. Seas around 2 ft.
Friday Night
S wind around 15 kt. A chance of rain and snow before 8pm, then a chance of snow between 8pm and 11pm, then a chance of rain after 11pm. Seas 3 to 4 ft.
Saturday
W wind 15 to 18 kt increasing to 17 to 20 kt in the afternoon. Winds could gust as high as 30 kt. Mostly sunny. Seas around 3 ft.
Saturday Night
WNW wind 12 to 15 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 25 kt. Mostly clear. Seas 1 to 2 ft.
Sunday
Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.
Sunday Night
SE wind 10 to 15 kt. A chance of rain. Seas 1 ft building to 3 ft.
Monday
SSE wind 15 to 20 kt, with gusts as high as 25 kt. Rain. Seas 5 ft building to 8 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: 2:28 pm EDT Mar 12, 2026
Forecast Valid: 5pm EDT Mar 12, 2026-6pm EDT Mar 19, 2026
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