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Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]

Overnight
Low: 34 °F
NNW 25kt
2ft
Wednesday
High: 39 °F
NNW 15kt⇓
2-3ft
Wednesday Night
Low: 35 °F
⇑SW 15kt
2ft
Thursday
High: 39 °F
⇑WNW 25kt
3ft
Thursday Night
Low: 17 °F
WNW 25kt⇓
3ft
Friday
High: 30 °F
WNW 15kt
2ft
Friday Night
Low: 28 °F
SW 10kt
2ft
Saturday
High: 37 °F
Light Wind
1-2ft
Saturday Night
Low: 31 °F
W 10kt
1-2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:50 pm EST Dec 2, 2025
Forecast Valid: 12am EST Dec 3, 2025-6pm EST Dec 9, 2025

View Nearby Observations

Detailed Forecast

Overnight

NNW wind 20 to 25 kt, with gusts as high as 35 kt. Rain before 1am, then rain and snow likely. Seas around 2 ft.

Wednesday

NNW wind 10 to 15 kt becoming W 5 to 8 kt in the afternoon. Winds could gust as high as 20 kt. Mostly cloudy, then gradually becoming sunny. Seas 2 to 3 ft.

Wednesday Night

W wind 5 to 8 kt becoming SW 10 to 15 kt after midnight. Mostly cloudy. Seas around 2 ft.

Thursday

WSW wind 15 to 20 kt becoming WNW 20 to 25 kt in the afternoon. Winds could gust as high as 35 kt. A chance of snow showers after 2pm. Seas around 3 ft.

Thursday Night

WNW wind 20 to 25 kt decreasing to 15 to 20 kt after midnight. Winds could gust as high as 35 kt. Mostly clear. Seas around 3 ft.

Friday

WNW wind 10 to 15 kt becoming SW in the afternoon. Mostly sunny. Seas around 2 ft.

Friday Night

SW wind around 10 kt becoming W after midnight. Mostly cloudy. Seas around 2 ft.

Saturday

Variable winds 5 kt or less. A chance of snow after 9am, mixing with rain after 3pm. Seas 1 to 2 ft.

Saturday Night

W wind around 10 kt. A chance of rain before 7pm. Seas 1 to 2 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.