Last Update: 634 PM EST Wed Jan 21 2026

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Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Zone Forecast


Tonight
SW winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 4 to 6 ft. Wave detail: S 5 ft at 5 seconds and SE 3 ft at 10 seconds. A chance of snow or rain this evening, then rain or snow likely after midnight.
Thu
SW winds 20 to 25 kt, becoming W 15 to 20 kt in the afternoon. Seas 4 to 6 ft. Wave detail: SW 5 ft at 4 seconds and S 5 ft at 7 seconds.
Thu Night
W winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. Wave detail: SW 5 ft at 5 seconds and SE 3 ft at 9 seconds.
Fri
W winds 20 to 25 kt with gusts up to 40 kt. Seas 4 to 6 ft. Wave detail: SW 5 ft at 5 seconds and SE 2 ft at 11 seconds.
Fri Night
W winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to 6 ft. Wave detail: W 5 ft at 5 seconds. Moderate freezing spray.
Sat
NW winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 35 kt. Seas 3 to 5 ft. Wave detail: NW 5 ft at 4 seconds. Moderate freezing spray.
Sat Night
NW winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Moderate freezing spray.
Sun
N winds 10 to 15 kt, becoming NE 15 to 20 kt in the afternoon. Seas 2 to 3 ft. A chance of snow. Light freezing spray. Vsby 1 to 3 nm.
Sun Night
NE winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Light freezing spray in the evening. Snow likely. Vsby 1 to 3 nm.
Mon
N winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Snow likely, mainly in the morning. Vsby 1 to 3 nm.
Mon Night
NW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 7 ft. A chance of snow in the evening with vsby 1 to 3 nm.



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634 PM EST Wed Jan 21 2026
 
 

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