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Gray/Portland, ME Local Forecast Office

4NM E Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.

      Low: 34 °F

      Light Wind
      1ft

    • Tuesday

      Tuesday:N wind 5 to 10 kt becoming ESE in the afternoon. Rain and snow showers likely before 4pm, then a chance of rain showers between 4pm and 5pm, then a chance of rain and snow showers after 5pm. Seas around 1 ft.

      High: 41 °F

      E 10kt
      1ft

    • Tuesday Night

      Tuesday Night:NNW wind around 10 kt. A chance of snow showers before 8pm. Seas around 1 ft.

      Low: 29 °F

      NNW 10kt
      1ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. Sunny. Seas around 1 ft.

      High: 39 °F

      Light Wind
      1ft

    • Wednesday Night

      Wednesday Night:S wind around 10 kt becoming SSW after midnight. Clear. Seas around 1 ft.

      Low: 33 °F

      S 10kt
      1ft

    • Thursday

      Thursday:SSW wind 5 to 8 kt becoming SSE 10 to 15 kt in the afternoon. Sunny. Seas around 1 ft.

      High: 45 °F

      ⇑SSE 15kt
      1ft

    • Thursday Night

      Thursday Night:SSW wind 10 to 15 kt. Partly cloudy. Seas 1 to 2 ft.

      Low: 37 °F

      SSW 15kt
      1-2ft

    • Friday

      Friday:SSW wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas around 1 ft.

      High: 54 °F

      S 10kt
      1ft

    • Friday Night

      Friday Night:SSW wind 5 to 10 kt. Partly cloudy. Seas around 2 ft.

      Low: 45 °F

      SSW 10kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:40 pm EDT Apr 6, 2026
Forecast Valid: 9pm EDT Apr 6, 2026-6pm EDT Apr 13, 2026

View Nearby Observations

Detailed Forecast


Tonight
Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.
Tuesday
N wind 5 to 10 kt becoming ESE in the afternoon. Rain and snow showers likely before 4pm, then a chance of rain showers between 4pm and 5pm, then a chance of rain and snow showers after 5pm. Seas around 1 ft.
Tuesday Night
NNW wind around 10 kt. A chance of snow showers before 8pm. Seas around 1 ft.
Wednesday
Variable winds 5 kt or less. Sunny. Seas around 1 ft.
Wednesday Night
S wind around 10 kt becoming SSW after midnight. Clear. Seas around 1 ft.
Thursday
SSW wind 5 to 8 kt becoming SSE 10 to 15 kt in the afternoon. Sunny. Seas around 1 ft.
Thursday Night
SSW wind 10 to 15 kt. Partly cloudy. Seas 1 to 2 ft.
Friday
SSW wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas around 1 ft.
Friday Night
SSW wind 5 to 10 kt. Partly cloudy. 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: 43.06°N 70.69°W
Last Update: 2:40 pm EDT Apr 6, 2026
Forecast Valid: 9pm EDT Apr 6, 2026-6pm EDT Apr 13, 2026
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