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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds 5 kt or less. Cloudy, then gradually becoming mostly sunny. Seas around 1 ft.

      High: 65 °F

      ⇑Light Wind
      1ft

    • Tonight

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

      Low: 59 °F

      Light Wind
      1ft

    • Monday

      Monday:Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.

      High: 67 °F

      Light Wind
      1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.

      Low: 61 °F

      Light Wind
      1ft

    • Tuesday

      Tuesday:SSW wind 5 to 10 kt becoming S in the afternoon. Mostly sunny. Seas around 1 ft.

      High: 71 °F

      S 10kt
      1ft

    • Tuesday Night

      Tuesday Night:SSW wind 10 to 15 kt. A chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 2am.   Seas around 2 ft.

      Low: 64 °F

      SSW 15kt
      2ft

    • Wednesday

      Wednesday:SW wind 5 to 10 kt becoming S in the afternoon. Mostly sunny. Seas around 2 ft.

      High: 75 °F

      SW 10kt
      2ft

    • Wednesday Night

      Wednesday Night:WSW wind around 10 kt. Partly cloudy. Seas 1 to 2 ft.

      Low: 67 °F

      WSW 10kt
      1-2ft

    • Thursday

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

      High: 80 °F

      Light Wind
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:40 am EDT Jun 28, 2026
Forecast Valid: 6am EDT Jun 28, 2026-6pm EDT Jul 4, 2026

View Nearby Observations

Detailed Forecast


Today
Variable winds 5 kt or less. Cloudy, then gradually becoming mostly sunny. Seas around 1 ft.
Tonight
Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.
Monday
Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.
Monday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.
Tuesday
SSW wind 5 to 10 kt becoming S in the afternoon. Mostly sunny. Seas around 1 ft.
Tuesday Night
SSW wind 10 to 15 kt. A chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 2am. Seas around 2 ft.
Wednesday
SW wind 5 to 10 kt becoming S in the afternoon. Mostly sunny. Seas around 2 ft.
Wednesday Night
WSW wind around 10 kt. Partly cloudy. Seas 1 to 2 ft.
Thursday
Variable winds 5 kt or less. Sunny. Seas around 1 ft.

Winds and seas higher in and near tstms.

*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: 2:40 am EDT Jun 28, 2026
Forecast Valid: 6am EDT Jun 28, 2026-6pm EDT Jul 4, 2026
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