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4NM ESE Portland ME

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:39 am EDT Jul 31, 2026
Forecast Valid: 3am EDT Jul 31, 2026-6pm EDT Aug 6, 2026

Friday

N wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas around 2 ft.

Friday Night

SW wind 7 to 10 kt becoming W 5 to 8 kt after midnight. Patchy fog after 11pm. Seas around 2 ft.

Saturday

N wind 5 to 10 kt becoming SSE in the afternoon. Patchy fog before 9am. Seas around 1 ft.

Saturday Night

Variable winds 5 kt or less. Patchy fog. Seas around 1 ft.

Sunday

S wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Patchy fog before 11am. Seas 1 to 2 ft.

Sunday Night

S wind 10 to 15 kt. A chance of showers after 2am. Patchy fog. Seas around 2 ft.

Monday

S wind around 10 kt. Showers likely, with thunderstorms also possible after 2pm. Patchy fog before 9am. Seas around 1 ft.

Monday Night

WSW wind around 10 kt. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and midnight. Seas around 1 ft.

Tuesday

WSW wind 5 to 10 kt becoming SSW in the afternoon. Mostly sunny. Seas 1 to 2 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.