| NWS Forecast for: 10NM S Portsmouth NH Atlantic Ocean Issued by: National Weather Service Gray/Portland, ME Last Update: 2:26 pm EDT Oct 9, 2026 | |
| Tonight: WNW wind around 15 km/h. Mostly clear. Seas 1 m or less. Saturday: NW wind 15 to 20 km/h decreasing to 10 to 15 km/h in the afternoon. Sunny. Seas 1 m or less. Saturday Night: Variable winds 5 km/h or less. Mostly clear. Seas 1 m or less. Sunday: S wind 5 to 10 km/h increasing to 10 to 15 km/h in the afternoon. Increasing clouds. Seas 1 m or less. Sunday Night: SSW wind around 10 km/h becoming ESE after midnight. Rain, mainly after 9pm. Seas 1 m or less. Columbus Day: NE wind 10 to 15 km/h becoming N in the afternoon. Rain before noon. Seas 1 m or less. Monday Night: SW wind 5 to 10 km/h becoming NNW after midnight. Partly cloudy. Seas around 1 m. Tuesday: ENE wind around 15 km/h becoming ESE in the afternoon. A chance of showers. Seas around 1 m. Tuesday Night: ESE wind 20 to 25 km/h becoming NNW after midnight. Winds could gust as high as 35 km/h. Showers likely. Seas around 1 m. | |
| 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/ |