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Gray/Portland, ME Local Forecast Office

3NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:Variable winds 5 kt or less. Cloudy. Seas 1 ft or less.

      High: 44 °F

      Light Wind
      < 1ft

    • Tonight

      Tonight:E wind 10 to 13 kt becoming E 12 to 15 kt after midnight. Winds could gust as high as 30 kt. Rain, mainly before 4am.   Seas 1 ft or less.

      Low: 35 °F

      ⇑E 15kt
      < 1ft

    • Sunday

      Sunday:NNE wind around 10 kt becoming WNW in the afternoon. Winds could gust as high as 20 kt. A chance of rain, mainly after 5pm.   Seas 1 ft or less.

      High: 37 °F

      NNE 10kt
      < 1ft

    • Sunday Night

      Sunday Night:W wind 15 to 20 kt, with gusts as high as 35 kt. Partly cloudy. Seas 1 ft or less.

      Low: 28 °F

      W 20kt
      < 1ft

    • Monday

      Monday:W wind 17 to 20 kt decreasing to 15 to 18 kt in the afternoon. Winds could gust as high as 35 kt. Mostly sunny. Seas 1 ft or less.

      High: 36 °F

      W 20kt⇓
      < 1ft

    • Monday Night

      Monday Night:WSW wind around 10 kt, with gusts as high as 20 kt. Partly cloudy. Seas 1 ft or less.

      Low: 32 °F

      WSW 10kt
      < 1ft

    • Tuesday

      Tuesday:WSW wind around 10 kt, with gusts as high as 20 kt. Mostly sunny. Seas 1 ft or less.

      High: 42 °F

      WSW 10kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSW wind 10 to 15 kt, with gusts as high as 25 kt. Cloudy. Seas 1 ft or less.

      Low: 37 °F

      SSW 15kt
      < 1ft

    • Wednesday

      Wednesday:SSW wind 10 to 15 kt, with gusts as high as 25 kt. Cloudy. Seas 1 ft or less.

      High: 45 °F

      SSW 15kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:51 pm EST Jan 10, 2026
Forecast Valid: 3pm EST Jan 10, 2026-6pm EST Jan 17, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
Variable winds 5 kt or less. Cloudy. Seas 1 ft or less.
Tonight
E wind 10 to 13 kt becoming E 12 to 15 kt after midnight. Winds could gust as high as 30 kt. Rain, mainly before 4am. Seas 1 ft or less.
Sunday
NNE wind around 10 kt becoming WNW in the afternoon. Winds could gust as high as 20 kt. A chance of rain, mainly after 5pm. Seas 1 ft or less.
Sunday Night
W wind 15 to 20 kt, with gusts as high as 35 kt. Partly cloudy. Seas 1 ft or less.
Monday
W wind 17 to 20 kt decreasing to 15 to 18 kt in the afternoon. Winds could gust as high as 35 kt. Mostly sunny. Seas 1 ft or less.
Monday Night
WSW wind around 10 kt, with gusts as high as 20 kt. Partly cloudy. Seas 1 ft or less.
Tuesday
WSW wind around 10 kt, with gusts as high as 20 kt. Mostly sunny. Seas 1 ft or less.
Tuesday Night
SSW wind 10 to 15 kt, with gusts as high as 25 kt. Cloudy. Seas 1 ft or less.
Wednesday
SSW wind 10 to 15 kt, with gusts as high as 25 kt. Cloudy. Seas 1 ft or less.

*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: 1:51 pm EST Jan 10, 2026
Forecast Valid: 3pm EST Jan 10, 2026-6pm EST Jan 17, 2026
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