National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

For More Weather Information:

Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 5am. Patchy fog after midnight. Seas around 1 ft.

      Low: 66 °F

      Light Wind
      1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. A chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms after 2pm. Patchy fog before 1pm. Seas around 1 ft.

      High: 72 °F

      Light Wind
      1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Patchy fog before 11pm. Seas around 1 ft.

      Low: 67 °F

      Light Wind
      1ft

    • Sunday

      Sunday:WSW wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas around 1 ft.

      High: 78 °F

      S 10kt
      1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.

      Low: 67 °F

      Light Wind
      1ft

    • Monday

      Monday:WNW wind 5 to 8 kt becoming SSE 7 to 10 kt in the afternoon. Sunny. Seas around 1 ft.

      High: 75 °F

      ⇑SSE 10kt
      1ft

    • Monday Night

      Monday Night:S wind around 10 kt becoming SW after midnight. Partly cloudy. Seas around 1 ft.

      Low: 68 °F

      S 10kt
      1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. A chance of showers. Seas around 1 ft.

      High: 76 °F

      Light Wind
      1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. A chance of showers. Seas around 1 ft.

      Low: 66 °F

      Light Wind
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:40 pm EDT Aug 7, 2026
Forecast Valid: 9pm EDT Aug 7, 2026-6pm EDT Aug 14, 2026

View Nearby Observations

Detailed Forecast


Tonight
Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 5am. Patchy fog after midnight. Seas around 1 ft.
Saturday
Variable winds 5 kt or less. A chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms after 2pm. Patchy fog before 1pm. Seas around 1 ft.
Saturday Night
Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Patchy fog before 11pm. Seas around 1 ft.
Sunday
WSW wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas around 1 ft.
Sunday Night
Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.
Monday
WNW wind 5 to 8 kt becoming SSE 7 to 10 kt in the afternoon. Sunny. Seas around 1 ft.
Monday Night
S wind around 10 kt becoming SW after midnight. Partly cloudy. Seas around 1 ft.
Tuesday
Variable winds 5 kt or less. A chance of showers. Seas around 1 ft.
Tuesday Night
Variable winds 5 kt or less. A chance of showers. Seas around 1 ft.

Winds and seas higher in and near tstms.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

Point Forecast: 42.99°N 70.62°W
Last Update: 7:40 pm EDT Aug 7, 2026
Forecast Valid: 9pm EDT Aug 7, 2026-6pm EDT Aug 14, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data