Hazardous Weather Conditions

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Gray/Portland, ME Local Forecast Office

18NM NNE Portsmouth NH

Marine Point Forecast

[NOTICE]

Overnight
Low: 37 °F
Light Wind
< 1ft
Thursday
High: 47 °F
Light Wind
< 1ft
Thursday Night
Low: 18 °F
W 10kt
< 1ft
Friday
High: 31 °F
W 10kt
< 1ft
Friday Night
Low: 22 °F
Light Wind
< 1ft
Saturday
High: 38 °F
Light Wind
< 1ft
Saturday Night
Low: 27 °F
Light Wind
< 1ft
Sunday
High: 38 °F
Light Wind
< 1ft
Sunday Night
Low: 22 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:24 am EST Jan 15, 2026
Forecast Valid: 12am EST Jan 15, 2026-6pm EST Jan 21, 2026

View Nearby Observations

Detailed Forecast

Overnight

Variable winds 5 kt or less. A chance of showers. Areas of fog. Seas 1 ft or less.

Thursday

Variable winds 5 kt or less. A slight chance of rain before 9am. Seas 1 ft or less.

Thursday Night

W wind 5 to 10 kt. Partly cloudy. Seas 1 ft or less.

Friday

W wind around 10 kt, with gusts as high as 20 kt. Sunny. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Saturday

Variable winds 5 kt or less. A chance of snow before 2pm, then a chance of rain and snow between 2pm and 4pm, then a chance of rain after 4pm. Seas 1 ft or less.

Saturday Night

Variable winds 5 kt or less. A chance of rain before 11pm. Seas 1 ft or less.

Sunday

Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Sunday Night

Variable winds 5 kt or less. A chance of snow. Seas 1 ft or less.

*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.