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Gray/Portland, ME Local Forecast Office

8NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]

M.L.King Day
High: 35 °F
⇑WSW 15kt
2-3ft
Monday Night
Low: 21 °F
W 25kt
4ft
Tuesday
High: 25 °F
W 20kt
3-4ft
Tuesday Night
Low: 16 °F
W 20kt
2-3ft
Wednesday
High: 36 °F
SSW 15kt
2ft
Wednesday Night
Low: 30 °F
SSW 20kt
2-3ft
Thursday
High: 40 °F
SW 20kt
3ft
Thursday Night
Low: 24 °F
W 20kt
3ft
Friday
High: 27 °F
W 20kt
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:57 am EST Jan 19, 2026
Forecast Valid: 4am EST Jan 19, 2026-6pm EST Jan 25, 2026

View Nearby Observations

Detailed Forecast

M.L.King Day

WNW wind 5 to 8 kt becoming WSW 10 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Snow likely, mainly before 11am. Seas 2 to 3 ft.

Monday Night

W wind 20 to 25 kt, with gusts as high as 30 kt. Widespread freezing spray after 4am. Mostly cloudy, then gradually becoming mostly clear. Seas around 4 ft.

Tuesday

W wind around 20 kt, with gusts as high as 30 kt. Widespread freezing spray. Mostly sunny. Seas 3 to 4 ft.

Tuesday Night

W wind 15 to 20 kt, with gusts as high as 30 kt. Widespread freezing spray. Mostly clear. Seas 2 to 3 ft.

Wednesday

WSW wind around 15 kt becoming SSW in the afternoon. Winds could gust as high as 25 kt. 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. A chance of snow before 11pm, then a chance of rain between 11pm and midnight. Seas 2 to 3 ft.

Thursday

SW wind 15 to 20 kt. Partly sunny. Seas around 3 ft.

Thursday Night

W wind around 20 kt, with gusts as high as 30 kt. Partly cloudy. Seas around 3 ft.

Friday

W wind around 20 kt, with gusts as high as 30 kt. Mostly sunny. Seas around 3 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.