| NWS Forecast for: 10NM S Portsmouth NH Atlantic Ocean Issued by: National Weather Service Gray/Portland, ME Last Update: 6:46 am EDT Sep 11, 2026 | |
| This Afternoon: Variable winds 5 kt or less. Sunny. Seas around 1 ft. Tonight: Variable winds 5 kt or less. Clear. Seas around 1 ft. Saturday: Variable winds less than 5 kt becoming SE 5 to 10 kt in the afternoon. Sunny. Seas around 1 ft. Saturday Night: S wind 5 to 10 kt. A chance of showers after 2am. Seas around 1 ft. Sunday: Variable winds 5 kt or less. Showers likely, mainly before 2pm. Seas 1 to 2 ft. Sunday Night: Variable winds 5 kt or less. A chance of showers before 7pm. Seas 1 to 2 ft. Monday: NNW wind 5 to 10 kt. Sunny. Seas around 2 ft. Monday Night: Variable winds 5 kt or less. Mostly clear. Seas 1 to 2 ft. Tuesday: NNE wind 5 to 10 kt becoming SSE in the afternoon. Sunny. Seas around 1 ft. | |
| Marine Point Forecast: 42.9°N 70.79°W Associated Zone Forecast which includes this point | |
Visit your local NWS office at: https://www.weather.gov/gyx/ |