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Gray/Portland, ME Local Forecast Office

3NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds 5 kt or less. Scattered showers before 2pm, then scattered showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm.   Seas 1 ft or less.

      High: 59 °F

      Light Wind
      < 1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Showers and thunderstorms likely before 4am, then scattered showers.   Seas 1 ft or less.

      Low: 48 °F

      Light Wind
      < 1ft

    • Monday

      Monday:NE wind 7 to 10 kt becoming E 5 to 8 kt in the afternoon. Winds could gust as high as 20 kt. Scattered showers, mainly before 8am.   Seas 1 ft or less.

      High: 54 °F

      NE 10kt⇓
      < 1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

      Low: 47 °F

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:WSW wind 5 to 10 kt becoming SSE in the afternoon. Scattered showers between noon and 2pm.   Seas 1 ft or less.

      High: 61 °F

      SSE 10kt
      < 1ft

    • Tuesday Night

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

      Low: 50 °F

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:NNW wind 5 to 8 kt becoming SE 7 to 10 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      High: 61 °F

      ⇑SE 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

      Low: 52 °F

      Light Wind
      < 1ft

    • Thursday

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

      High: 72 °F

      Light Wind
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:41 am EDT May 31, 2026
Forecast Valid: 11am EDT May 31, 2026-6pm EDT Jun 6, 2026

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Detailed Forecast


Today
Variable winds 5 kt or less. Scattered showers before 2pm, then scattered showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Seas 1 ft or less.
Tonight
Variable winds 5 kt or less. Showers and thunderstorms likely before 4am, then scattered showers. Seas 1 ft or less.
Monday
NE wind 7 to 10 kt becoming E 5 to 8 kt in the afternoon. Winds could gust as high as 20 kt. Scattered showers, mainly before 8am. Seas 1 ft or less.
Monday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Tuesday
WSW wind 5 to 10 kt becoming SSE in the afternoon. Scattered showers between noon and 2pm. Seas 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Wednesday
NNW wind 5 to 8 kt becoming SE 7 to 10 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Wednesday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Thursday
Variable winds 5 kt or less. Sunny. 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: 5:41 am EDT May 31, 2026
Forecast Valid: 11am EDT May 31, 2026-6pm EDT Jun 6, 2026
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