| NWS Forecast for: 3NM SE Portsmouth NH Atlantic Ocean Issued by: National Weather Service Gray/Portland, ME Last Update: 1:57 pm EDT Jun 30, 2025 |  |
| This Afternoon: SSE wind around 10 kt. Sunny. Seas 1 ft or less. Tonight: Variable winds 5 kt or less. Patchy fog after 8pm. Seas 1 ft or less. Tuesday: S wind 5 to 10 kt, with gusts as high as 20 kt. Scattered showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then scattered showers and thunderstorms after 3pm. Some of the storms could be severe. Areas of fog before 2pm. Seas 1 ft or less. Tuesday Night: WSW wind around 10 kt. Scattered showers and thunderstorms before 10pm. Some of the storms could be severe. Seas 1 ft or less. Wednesday: Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less. Wednesday Night: Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less. Thursday: W wind 5 to 10 kt becoming SSW in the afternoon. A chance of showers after 2pm. Seas 1 ft or less. Thursday Night: Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less. Independence Day: Variable winds 5 kt or less. Sunny. Seas 1 ft or less. | |
| Marine Point Forecast: 43.02°N 70.73°W Associated Zone Forecast which includes this point | |
Visit your local NWS office at: https://www.weather.gov/gyx/ |
