| NWS Forecast for: 18NM NNE Portsmouth NH Atlantic Ocean Issued by: National Weather Service Gray/Portland, ME Last Update: 6:12 am EST Nov 7, 2025 |  |
Today: WSW wind 5 to 10 kt becoming S in the afternoon. Increasing clouds. Seas 1 ft or less. Tonight: S wind 5 to 10 kt. Rain likely, mainly between 10pm and 1am. Seas 1 ft or less. Saturday: Variable winds 5 kt or less. A slight chance of showers, mainly between 11am and noon. Seas 1 ft or less. Saturday Night: Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less. Sunday: Variable winds 5 kt or less. A chance of rain after 2pm. Seas 1 ft or less. Sunday Night: Variable winds 5 kt or less. Rain. Seas 1 ft or less. Monday: NE wind 5 to 10 kt becoming WNW in the afternoon. Showers, mainly before 4pm. Seas 1 ft or less. Monday Night: W wind 5 to 10 kt. A chance of showers. Seas 1 ft or less. Veterans Day: W wind around 10 kt, with gusts as high as 20 kt. Mostly sunny. Seas 1 ft or less. | |
| Marine Point Forecast: 43.31°N 70.57°W Associated Zone Forecast which includes this point | |
Visit your local NWS office at: https://www.weather.gov/gyx/ |
