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Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Point Forecast

[NOTICE]

Tonight
Low: 45 °F
S 10kt
2-3ft
Saturday
High: 48 °F
S 20kt
6ft
Saturday Night
Low: 45 °F
SSW 15kt
5-6ft
Sunday
High: 49 °F
W 15kt
5ft
Sunday Night
Low: 46 °F
NNW 15kt
5ft
Monday
High: 54 °F
NW 15kt⇓
2-3ft
Monday Night
Low: 47 °F
W 10kt
2ft
Tuesday
High: 54 °F
⇑S 15kt
2-3ft
Tuesday Night
Low: 52 °F
SSW 15kt
4-5ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:12 pm EDT Apr 25, 2025
Forecast Valid: 5pm EDT Apr 25, 2025-6pm EDT May 2, 2025

View Nearby Observations

Detailed Forecast

Tonight

ESE wind around 10 kt becoming S after midnight. A chance of rain, mainly after 4am. Areas of fog after 1am. Seas 2 to 3 ft.

Saturday

SSE wind 15 to 20 kt becoming S in the afternoon. Winds could gust as high as 25 kt. Rain and thunderstorms likely, then rain and possibly a thunderstorm after 8am. Areas of fog. Seas 4 ft building to 6 ft.

Saturday Night

SSW wind around 15 kt becoming W after midnight. Winds could gust as high as 20 kt. Showers likely, mainly before midnight. Areas of fog. Seas 5 to 6 ft.

Sunday

W wind 10 to 15 kt becoming WNW in the afternoon. A chance of showers after 2pm. Patchy fog before 8am. Seas around 5 ft.

Sunday Night

NNW wind around 15 kt, with gusts as high as 25 kt. A chance of showers before 8pm. Seas around 5 ft.

Monday

NW wind 12 to 15 kt decreasing to 10 to 13 kt in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas 2 to 3 ft.

Monday Night

W wind around 10 kt. Mostly clear. Seas around 2 ft.

Tuesday

SW wind 5 to 8 kt becoming S 10 to 15 kt in the afternoon. Mostly sunny. Seas 2 to 3 ft.

Tuesday Night

SSW wind around 15 kt, with gusts as high as 25 kt. Mostly cloudy. Seas 4 to 5 ft.

*Notices:

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.
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.