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Portland ME

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:42 pm EDT Sep 1, 2025
Forecast Valid: 9pm EDT Sep 1, 2025-6pm EDT Sep 8, 2025

Tonight

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

Tuesday

Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Patchy fog after 3am. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Patchy fog before 8am. Seas 1 ft or less.

Wednesday Night

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

Thursday

Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. Winds could gust as high as 20 kt. Sunny. Seas 1 ft or less.

Thursday Night

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

Friday

S wind around 10 kt, with gusts as high as 20 kt. A chance of showers. Seas 1 ft or less.

Friday Night

SSW wind around 10 kt. 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.