| NWS Forecast for: 18NM NNE Portsmouth NH Atlantic Ocean Issued by: National Weather Service Gray/Portland, ME Last Update: 9:03 pm EDT Apr 22, 2025 | |
| Overnight: Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less. Wednesday: Variable winds 5 kt or less. Sunny. Seas 1 ft or less. Wednesday Night: Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less. Thursday: Variable winds 5 kt or less. Sunny. Seas 1 ft or less. Thursday Night: Variable winds 5 kt or less. A chance of showers before 2am. Seas 1 ft or less. Friday: Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less. Friday Night: Variable winds 5 kt or less. Showers likely, mainly after 2am. Seas 1 ft or less. Saturday: S wind 5 to 10 kt becoming SW in the afternoon. Showers. Seas 1 ft or less. Saturday Night: Variable winds 5 kt or less. Showers likely. 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/ |