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Gray/Portland, ME Local Forecast Office

7NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]

Today
High: 79 °F
S 15kt
2-3ft
Tonight
Low: 67 °F
SW 10kt
2ft
Wednesday
High: 78 °F
S 10kt
2ft
Wednesday Night
Low: 65 °F
SSW 10kt
2ft
Thursday
High: 78 °F
S 10kt
2ft
Thursday Night
Low: 63 °F
WNW 10kt
2ft
Independence Day
High: 74 °F
W 10kt
2ft
Friday Night
Low: 62 °F
Light Wind
1-2ft
Saturday
High: 74 °F
Light Wind
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:38 am EDT Jul 1, 2025
Forecast Valid: 5am EDT Jul 1, 2025-6pm EDT Jul 7, 2025

View Nearby Observations

Detailed Forecast

Today

S wind 10 to 15 kt. Scattered showers and thunderstorms, mainly between 11am and 3pm. Patchy fog between 7am and 8am, then Patchy fog between 9am and noon. Seas 2 to 3 ft.

Tonight

SW wind around 10 kt. Scattered showers and thunderstorms. Seas around 2 ft.

Wednesday

SW wind around 10 kt becoming S in the afternoon. Isolated showers before 8am. Seas around 2 ft.

Wednesday Night

SSW wind 5 to 10 kt becoming W after midnight. Partly cloudy. Seas around 2 ft.

Thursday

W wind 5 to 10 kt becoming S in the afternoon. Scattered showers and thunderstorms after 5pm. Seas around 2 ft.

Thursday Night

WNW wind 5 to 10 kt. Scattered showers and thunderstorms before 8pm. Seas around 2 ft.

Independence Day

W wind 5 to 10 kt. Sunny. Seas around 2 ft.

Friday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 to 2 ft.

Saturday

Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.

Winds and seas higher in and near tstms.

*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.