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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Sunday

      Sunday:SW wind 5 to 10 kt becoming NE in the afternoon. A chance of rain and snow before 2pm, then a chance of snow between 2pm and 3pm, then a chance of rain and snow after 3pm.   Seas around 2 ft.

      High: 36 °F

      SW 10kt
      2ft

    • Sunday Night

      Sunday Night:NE wind 10 to 15 kt becoming N after midnight. Snow, possibly mixed with rain, becoming all snow after 11pm. The snow could be heavy at times.   Seas around 2 ft.

      Low: 29 °F

      N 15kt
      2ft

    • M.L.King Day

      M.L.King Day:N wind 10 to 13 kt becoming WSW 12 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Snow, mainly before 11am.   Seas 2 to 3 ft.

      High: 33 °F

      ⇑WSW 15kt
      2-3ft

    • Monday Night

      Monday Night:W wind around 20 kt, with gusts as high as 30 kt. Widespread freezing spray after 4am. Partly cloudy. Seas 3 to 4 ft.

      Low: 22 °F

      W 20kt
      3-4ft

    • Tuesday

      Tuesday:W wind around 20 kt, with gusts as high as 30 kt. Widespread freezing spray. Mostly sunny. Seas around 3 ft.

      High: 25 °F

      W 20kt
      3ft

    • Tuesday Night

      Tuesday Night:W wind 15 to 20 kt, with gusts as high as 25 kt. Widespread freezing spray. Mostly clear. Seas 2 to 3 ft.

      Low: 18 °F

      W 20kt
      2-3ft

    • Wednesday

      Wednesday:WSW wind 15 to 20 kt becoming SSW in the afternoon. Widespread freezing spray before noon. Mostly sunny. Seas around 2 ft.

      High: 35 °F

      SSW 20kt
      2ft

    • Wednesday Night

      Wednesday Night:SSW wind around 20 kt, with gusts as high as 30 kt. Mostly cloudy. Seas 3 to 4 ft.

      Low: 30 °F

      SSW 20kt
      3-4ft

    • Thursday

      Thursday:SW wind 15 to 20 kt, with gusts as high as 30 kt. Partly sunny. Seas around 3 ft.

      High: 37 °F

      SW 20kt
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:07 am EST Jan 18, 2026
Forecast Valid: 3am EST Jan 18, 2026-6pm EST Jan 24, 2026

View Nearby Observations

Detailed Forecast


Sunday
SW wind 5 to 10 kt becoming NE in the afternoon. A chance of rain and snow before 2pm, then a chance of snow between 2pm and 3pm, then a chance of rain and snow after 3pm. Seas around 2 ft.
Sunday Night
NE wind 10 to 15 kt becoming N after midnight. Snow, possibly mixed with rain, becoming all snow after 11pm. The snow could be heavy at times. Seas around 2 ft.
M.L.King Day
N wind 10 to 13 kt becoming WSW 12 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Snow, mainly before 11am. Seas 2 to 3 ft.
Monday Night
W wind around 20 kt, with gusts as high as 30 kt. Widespread freezing spray after 4am. Partly cloudy. Seas 3 to 4 ft.
Tuesday
W wind around 20 kt, with gusts as high as 30 kt. Widespread freezing spray. Mostly sunny. Seas around 3 ft.
Tuesday Night
W wind 15 to 20 kt, with gusts as high as 25 kt. Widespread freezing spray. Mostly clear. Seas 2 to 3 ft.
Wednesday
WSW wind 15 to 20 kt becoming SSW in the afternoon. Widespread freezing spray before noon. Mostly sunny. Seas around 2 ft.
Wednesday Night
SSW wind around 20 kt, with gusts as high as 30 kt. Mostly cloudy. Seas 3 to 4 ft.
Thursday
SW wind 15 to 20 kt, with gusts as high as 30 kt. Partly sunny. Seas around 3 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: 42.99°N 70.62°W
Last Update: 1:07 am EST Jan 18, 2026
Forecast Valid: 3am EST Jan 18, 2026-6pm EST Jan 24, 2026
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