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Gray/Portland, ME Local Forecast Office

6NM SSE Portsmouth NH

Marine Point Forecast

[NOTICE]

This Afternoon
High: 24 °F
Light Wind
2ft
Tonight
Low: 13 °F
Light Wind
1-2ft
Thursday
High: 23 °F
NW 10kt
1ft
Thursday Night
Low: 7 °F
W 15kt
1ft
Friday
High: 17 °F
WNW 15kt
1ft
Friday Night
Low: 5 °F
WNW 10kt
1ft
Saturday
High: 22 °F
Light Wind
< 1ft
Saturday Night
Low: 15 °F
⇑NNE 15kt
2ft
Sunday
High: 27 °F
N 20kt
4ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:14 pm EST Jan 28, 2026
Forecast Valid: 3pm EST Jan 28, 2026-6pm EST Feb 4, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

Variable winds 5 kt or less. Partly sunny. Seas around 2 ft.

Tonight

Variable winds 5 kt or less. Widespread freezing spray after midnight. Mostly cloudy. Seas 1 to 2 ft.

Thursday

NW wind around 10 kt. Widespread freezing spray before 11am. Mostly sunny. Seas around 1 ft.

Thursday Night

W wind 10 to 15 kt. Widespread freezing spray. Mostly clear. Seas around 1 ft.

Friday

WNW wind around 15 kt. Widespread freezing spray. Sunny. Seas around 1 ft.

Friday Night

WNW wind around 10 kt. Widespread freezing spray. Mostly clear. Seas around 1 ft.

Saturday

Variable winds 5 kt or less. Widespread freezing spray before 11am. Mostly sunny. Seas 1 ft or less.

Saturday Night

NNW wind 5 to 8 kt becoming NNE 10 to 15 kt after midnight. Winds could gust as high as 20 kt. Widespread freezing spray after 9pm. Mostly cloudy. Seas 1 ft or less building to 2 ft.

Sunday

N wind 15 to 20 kt, with gusts as high as 30 kt. A chance of snow. Widespread freezing spray before 1pm. Seas 2 ft building to 4 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.