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Gray/Portland, ME Local Forecast Office

4NM ESE Portland ME

Marine Point Forecast

[NOTICE]

Tonight
Low: 64 °F
S 15kt⇓
2ft
Monday
High: 70 °F
⇑S 20kt
2ft
Monday Night
Low: 63 °F
WSW 20kt⇓
2ft
Tuesday
High: 74 °F
WSW 10kt
2ft
Tuesday Night
Low: 62 °F
W 10kt
1-2ft
Wednesday
High: 72 °F
⇑S 10kt
1ft
Wednesday Night
Low: 64 °F
S 10kt
1ft
Thursday
High: 74 °F
⇑S 10kt
1ft
Thursday Night
Low: 66 °F
SW 10kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:18 pm EDT Aug 2, 2026
Forecast Valid: 5pm EDT Aug 2, 2026-6pm EDT Aug 9, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH

Tonight

S wind 12 to 15 kt decreasing to 10 to 13 kt after midnight. A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Areas of fog after 9pm. Seas around 2 ft.

Monday

S wind 15 to 18 kt increasing to 17 to 20 kt in the afternoon. Winds could gust as high as 25 kt. Showers, with thunderstorms also possible after 2pm. Areas of fog before 11am, then Areas of fog between 1pm and 3pm. Seas around 2 ft.

Monday Night

WSW wind 15 to 20 kt decreasing to 10 to 15 kt after midnight. Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 9pm. Seas around 2 ft.

Tuesday

WSW wind around 10 kt. Sunny. Seas around 2 ft.

Tuesday Night

W wind 5 to 10 kt. Mostly clear. Seas 1 to 2 ft.

Wednesday

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

Wednesday Night

S wind 5 to 10 kt becoming SW after midnight. Partly cloudy. Seas around 1 ft.

Thursday

SW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Mostly sunny. Seas around 1 ft.

Thursday Night

SW wind 5 to 10 kt. Partly cloudy. Seas around 1 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.