Last Update: 802 AM EDT Sun Sep 13 2026

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Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Zone Forecast


Today
S winds 5 to 10 kt with gusts up to 20 kt, increasing to 10 to 15 kt with gusts up to 20 kt late this morning and early afternoon, then becoming SE 5 to 10 kt late. Seas 2 to 3 ft. Wave detail: S 2 ft at 4 seconds. Patchy fog. Showers late this morning and afternoon. A slight chance of tstms early this afternoon. Vsby 1 nm or less.
Tonight
SW winds 5 to 10 kt. Seas around 2 ft. Wave detail: SE 2 ft at 4 seconds and SE 2 ft at 10 seconds. A chance of showers in the evening.
Mon
NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: W 2 ft at 3 seconds and SE 2 ft at 7 seconds. A chance of showers in the morning.
Mon Night
N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: SE 3 ft at 8 seconds and NW 2 ft at 3 seconds.
Tue
NE winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave detail: NE 2 ft at 6 seconds.
Tue Night
S winds 5 to 10 kt. Seas around 2 ft. Wave detail: SE 2 ft at 7 seconds.
Wed
S winds 5 to 10 kt. Seas around 2 ft.
Wed Night
S winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft.
Thu
E winds around 5 kt. Seas 2 to 3 ft.
Thu Night
SE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. A chance of showers.

winds and seas higher in and near tstms.




Winds and seas higher in and near tstms.
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802 AM EDT Sun Sep 13 2026
 
 

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