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Hazardous Weather Conditions

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Gray/Portland, ME Local Forecast Office

18NM NNE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:ENE wind 5 to 10 kt. Mostly cloudy. Seas 1 ft or less.

      High: 33 °F

      ENE 10kt
      < 1ft

    • Tonight

      Tonight:NE wind 10 to 15 kt increasing to 20 to 25 kt. Winds could gust as high as 35 kt. Snow likely, mainly after 2am. Seas 1 ft or less.

      Low: 21 °F

      ⇑NE 25kt
      < 1ft

    • Monday

      Monday:N wind 25 to 30 kt, with gusts as high as 45 kt. Snow with widespread blowing snow. Seas 1 ft or less.

      High: 29 °F

      N 30kt
      < 1ft

    • Monday Night

      Monday Night:N wind 17 to 20 kt becoming NW 15 to 18 kt after midnight. Winds could gust as high as 35 kt. Snow likely with patchy blowing snow before 11pm. Seas 1 ft or less.

      Low: 18 °F

      N 20kt⇓
      < 1ft

    • Tuesday

      Tuesday:WNW wind 5 to 10 kt, with gusts as high as 20 kt. Mostly sunny. Seas 1 ft or less.

      High: 31 °F

      WNW 10kt
      < 1ft

    • Tuesday Night

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

      Low: 10 °F

      Light Wind
      < 1ft

    • Wednesday

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

      High: 35 °F

      Light Wind
      < 1ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. A chance of snow. Seas 1 ft or less.

      Low: 23 °F

      Light Wind
      < 1ft

    • Thursday

      Thursday:Variable winds 5 kt or less. A chance of snow. Seas 1 ft or less.

      High: 39 °F

      Light Wind
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:30 pm EST Feb 22, 2026
Forecast Valid: 1pm EST Feb 22, 2026-6pm EST Feb 28, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
ENE wind 5 to 10 kt. Mostly cloudy. Seas 1 ft or less.
Tonight
NE wind 10 to 15 kt increasing to 20 to 25 kt. Winds could gust as high as 35 kt. Snow likely, mainly after 2am. Seas 1 ft or less.
Monday
N wind 25 to 30 kt, with gusts as high as 45 kt. Snow with widespread blowing snow. Seas 1 ft or less.
Monday Night
N wind 17 to 20 kt becoming NW 15 to 18 kt after midnight. Winds could gust as high as 35 kt. Snow likely with patchy blowing snow before 11pm. Seas 1 ft or less.
Tuesday
WNW wind 5 to 10 kt, with gusts as high as 20 kt. Mostly sunny. Seas 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Wednesday
Variable winds 5 kt or less. Snow. Seas 1 ft or less.
Wednesday Night
Variable winds 5 kt or less. A chance of snow. Seas 1 ft or less.
Thursday
Variable winds 5 kt or less. A chance of snow. 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: 43.31°N 70.57°W
Last Update: 12:30 pm EST Feb 22, 2026
Forecast Valid: 1pm EST Feb 22, 2026-6pm EST Feb 28, 2026
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