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10NM SSW Portland ME

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:23 pm EDT Sep 16, 2026
Forecast Valid: 12am EDT Sep 17, 2026-6pm EDT Sep 23, 2026

Overnight

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

Thursday

Variable winds 5 kt or less. A slight chance of showers after 5pm. Patchy fog. Seas 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Showers and thunderstorms before 1am, then a chance of showers. Patchy fog after 11pm. Seas 1 ft or less.

Friday

NW wind 5 to 8 kt increasing to 7 to 10 kt in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas 1 ft or less.

Friday Night

NNW wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

Saturday

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

Saturday Night

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

Sunday

S wind 5 to 8 kt increasing to 7 to 10 kt in the afternoon. Showers likely. Seas 1 ft or less.

Sunday Night

Variable winds 5 kt or less. A chance of showers. 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.