Last Update: 618 AM EDT Sun Jul 20 2025

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Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Zone Forecast


Today
S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave detail: S 3 ft at 5 seconds. Isolated showers and tstms early this afternoon. Scattered showers and tstms late with vsby 1 to 3 nm.
Tonight
W winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft. Wave detail: SE 3 ft at 5 seconds. Showers likely with scattered tstms in the evening with vsby 1 to 3 nm.
Mon
NW winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: SE 2 ft at 5 seconds.
Mon Night
NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
Tue
NW winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft.
Tue Night
S winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft.
Wed
W winds around 5 kt, becoming S in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon.
Wed Night
S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Thu
SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft.
Thu Night
SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.

winds and seas higher in and near tstms.




Winds and seas higher in and near tstms.
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618 AM EDT Sun Jul 20 2025
 
 

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