For More Weather Information:

Gray/Portland, ME Local Forecast Office

3NM SE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:S wind 10 to 15 kt becoming W after midnight. Winds could gust as high as 25 kt. A chance of rain, mainly before 9pm.   Seas 1 ft or less.

      Low: 37 °F

      SSW 15kt
      < 1ft

    • Saturday

      Saturday:W wind 7 to 10 kt becoming E 5 to 8 kt in the afternoon. Winds could gust as high as 20 kt. Mostly cloudy. Seas 1 ft or less.

      High: 44 °F

      W 10kt⇓
      < 1ft

    • Saturday Night

      Saturday Night:E wind 5 to 10 kt increasing to 10 to 15 kt after midnight. Winds could gust as high as 25 kt. Rain, mainly after 7pm.   Seas 1 ft or less.

      Low: 35 °F

      ⇑E 15kt
      < 1ft

    • Sunday

      Sunday:NE wind 10 to 15 kt becoming W in the afternoon. Winds could gust as high as 25 kt. Rain and sleet likely before 10am, then a chance of rain between 10am and 5pm, then a chance of rain and snow after 5pm.   Seas 1 ft or less.

      High: 38 °F

      W 15kt
      < 1ft

    • Sunday Night

      Sunday Night:W wind around 20 kt, with gusts as high as 35 kt. A chance of snow before 7pm.   Seas 1 ft or less.

      Low: 28 °F

      W 20kt
      < 1ft

    • Monday

      Monday:W wind 17 to 20 kt decreasing to 15 to 18 kt in the afternoon. Winds could gust as high as 35 kt. Mostly sunny. Seas 1 ft or less.

      High: 36 °F

      W 20kt⇓
      < 1ft

    • Monday Night

      Monday Night:WSW wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Seas 1 ft or less.

      Low: 32 °F

      WSW 10kt
      < 1ft

    • Tuesday

      Tuesday:WSW wind around 10 kt, with gusts as high as 20 kt. Mostly sunny. Seas 1 ft or less.

      High: 42 °F

      WSW 10kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly cloudy. Seas 1 ft or less.

      Low: 36 °F

      SSW 15kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:11 pm EST Jan 9, 2026
Forecast Valid: 7pm EST Jan 9, 2026-6pm EST Jan 16, 2026

View Nearby Observations

Detailed Forecast


Tonight
S wind 10 to 15 kt becoming W after midnight. Winds could gust as high as 25 kt. A chance of rain, mainly before 9pm. Seas 1 ft or less.
Saturday
W wind 7 to 10 kt becoming E 5 to 8 kt in the afternoon. Winds could gust as high as 20 kt. Mostly cloudy. Seas 1 ft or less.
Saturday Night
E wind 5 to 10 kt increasing to 10 to 15 kt after midnight. Winds could gust as high as 25 kt. Rain, mainly after 7pm. Seas 1 ft or less.
Sunday
NE wind 10 to 15 kt becoming W in the afternoon. Winds could gust as high as 25 kt. Rain and sleet likely before 10am, then a chance of rain between 10am and 5pm, then a chance of rain and snow after 5pm. Seas 1 ft or less.
Sunday Night
W wind around 20 kt, with gusts as high as 35 kt. A chance of snow before 7pm. Seas 1 ft or less.
Monday
W wind 17 to 20 kt decreasing to 15 to 18 kt in the afternoon. Winds could gust as high as 35 kt. Mostly sunny. Seas 1 ft or less.
Monday Night
WSW wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Seas 1 ft or less.
Tuesday
WSW wind around 10 kt, with gusts as high as 20 kt. Mostly sunny. Seas 1 ft or less.
Tuesday Night
SSW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly cloudy. Seas 1 ft or less.

*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...

ABOUT THIS FORECAST

Point Forecast: 43.02°N 70.73°W
Last Update: 6:11 pm EST Jan 9, 2026
Forecast Valid: 7pm EST Jan 9, 2026-6pm EST Jan 16, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data