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Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]

Today
High: 70 °F
⇑SSE 10kt
1-2ft
Tonight
Low: 64 °F
SSW 10kt
2ft
Friday
High: 68 °F
S 10kt
2ft
Friday Night
Low: 59 °F
S 10kt
2ft
Saturday
High: 68 °F
Light Wind
1ft
Saturday Night
Low: 58 °F
Light Wind
1ft
Sunday
High: 67 °F
Light Wind
1ft
Sunday Night
Low: 60 °F
Light Wind
1ft
Labor Day
High: 67 °F
Light Wind
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:43 am EDT Aug 28, 2025
Forecast Valid: 9am EDT Aug 28, 2025-6pm EDT Sep 3, 2025

View Nearby Observations

Detailed Forecast

Today

WSW wind 5 to 8 kt becoming SSE 7 to 10 kt in the afternoon. Sunny. Seas 1 to 2 ft.

Tonight

SSW wind around 10 kt. Partly cloudy. Seas around 2 ft.

Friday

S wind around 10 kt. Scattered showers, then showers and possibly a thunderstorm after 11am. Seas around 2 ft.

Friday Night

S wind 5 to 10 kt becoming WNW after midnight. Showers and possibly a thunderstorm before 9pm, then a chance of showers between 9pm and 3am. Seas around 2 ft.

Saturday

Variable winds 5 kt or less. Sunny. Seas around 1 ft.

Saturday Night

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

Sunday

Variable winds 5 kt or less. Sunny. Seas around 1 ft.

Sunday Night

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

Labor Day

Variable winds 5 kt or less. 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.