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Gray/Portland, ME Local Forecast Office

4NM E Portsmouth NH

Marine Point Forecast

[NOTICE]

Late Afternoon
High: 32 °F
N 25kt
2ft
Tonight
Low: 22 °F
NW 20kt
1-2ft
Tuesday
High: 30 °F
WNW 15kt
1ft
Tuesday Night
Low: 17 °F
WNW 10kt
1ft
Wednesday
High: 38 °F
S 10kt
1-2ft
Wednesday Night
Low: 29 °F
WSW 10kt
1-2ft
Thursday
High: 39 °F
W 10kt
1ft
Thursday Night
Low: 27 °F
NNE 10kt
1ft
Friday
High: 38 °F
N 10kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:40 pm EST Feb 23, 2026
Forecast Valid: 4pm EST Feb 23, 2026-6pm EST Mar 2, 2026

View Nearby Observations

Detailed Forecast

Late Afternoon

N wind around 25 kt, with gusts as high as 35 kt. Snow with areas of blowing snow. Seas around 2 ft.

Tonight

NW wind 15 to 20 kt, with gusts as high as 25 kt. Snow likely with patchy blowing snow before 9pm, then a slight chance of snow between 9pm and 10pm, then patchy blowing snow after 10pm. Seas 1 to 2 ft.

Tuesday

WNW wind 10 to 15 kt. Sunny. Seas around 1 ft.

Tuesday Night

WNW wind 5 to 10 kt becoming WSW after midnight. Increasing clouds. Seas around 1 ft.

Wednesday

S wind 5 to 10 kt. Snow before 1pm, then rain and snow likely between 1pm and 3pm, then rain likely after 3pm. Seas 1 to 2 ft.

Wednesday Night

SW wind around 10 kt becoming W after midnight. A chance of rain before 7pm. Seas 1 to 2 ft.

Thursday

W wind around 10 kt. Mostly sunny. Seas around 1 ft.

Thursday Night

SW wind 5 to 10 kt becoming NE after midnight. A chance of snow. Seas around 1 ft.

Friday

N wind 5 to 10 kt becoming WNW in the afternoon. A chance of snow. Seas around 1 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.