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Norton, MA Local Forecast Office

52NM SSW Nantucket MA

Marine Point Forecast

[NOTICE]
    • Today

      Today:S wind 8 to 11 kt increasing to 12 to 15 kt in the afternoon. A chance of showers and thunderstorms, mainly after 4pm.  Patchy smoke between 4pm and 5pm.  Seas 2 to 3 ft.

      High: 74 °F

      ⇑S 15kt
      2-3ft

    • Tonight

      Tonight:SW wind 18 to 21 kt increasing to 21 to 24 kt in the evening. Winds could gust as high as 32 kt. Showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 3am, then a chance of showers and thunderstorms after 3am. Some of the storms could produce heavy rainfall.   Seas 3 ft building to 6 ft.

      Low: 70 °F

      ⇑SW 24kt
      Waves Building6ft

    • Sunday

      Sunday:WNW wind 13 to 16 kt, with gusts as high as 22 kt. A slight chance of showers before 8am.   Seas 7 ft subsiding to 5 ft.

      High: 70 °F

      WNW 16kt
      7ftWaves Subsiding

    • Sunday Night

      Sunday Night:W wind 9 to 11 kt becoming NNW after midnight. Mostly clear. Seas 4 to 5 ft.

      Low: 59 °F

      W 11kt
      4-5ft

    • Monday

      Monday:NNE wind around 6 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas around 3 ft.

      High: 71 °F

      NNE 6kt⇓
      3ft

    • Monday Night

      Monday Night:SSE wind around 8 kt. Partly cloudy. Seas around 3 ft.

      Low: 67 °F

      SSE 8kt
      3ft

    • Tuesday

      Tuesday:SSE wind 11 to 16 kt. A chance of showers between 10am and 2pm, then a chance of showers and thunderstorms after 2pm.   Seas 2 to 3 ft.

      High: 75 °F

      SSE 16kt
      2-3ft

    • Tuesday Night

      Tuesday Night:SSW wind 19 to 22 kt increasing to 22 to 25 kt after midnight. Winds could gust as high as 33 kt. Showers and possibly a thunderstorm.   Seas 5 ft building to 10 ft.

      Low: 70 °F

      ⇑SSW 25kt
      Waves Building10ft

    • Wednesday

      Wednesday:SSW wind around 26 kt, with gusts as high as 35 kt. Showers and possibly a thunderstorm before 2pm, then showers likely.   Seas 12 to 13 ft.

      High: 75 °F

      SSW 26kt
      12-13ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:34 am EDT Jul 18, 2026
Forecast Valid: 7am EDT Jul 18, 2026-6pm EDT Jul 24, 2026

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Detailed Forecast


Today
S wind 8 to 11 kt increasing to 12 to 15 kt in the afternoon. A chance of showers and thunderstorms, mainly after 4pm. Patchy smoke between 4pm and 5pm. Seas 2 to 3 ft.
Tonight
SW wind 18 to 21 kt increasing to 21 to 24 kt in the evening. Winds could gust as high as 32 kt. Showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 3am, then a chance of showers and thunderstorms after 3am. Some of the storms could produce heavy rainfall. Seas 3 ft building to 6 ft.
Sunday
WNW wind 13 to 16 kt, with gusts as high as 22 kt. A slight chance of showers before 8am. Seas 7 ft subsiding to 5 ft.
Sunday Night
W wind 9 to 11 kt becoming NNW after midnight. Mostly clear. Seas 4 to 5 ft.
Monday
NNE wind around 6 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas around 3 ft.
Monday Night
SSE wind around 8 kt. Partly cloudy. Seas around 3 ft.
Tuesday
SSE wind 11 to 16 kt. A chance of showers between 10am and 2pm, then a chance of showers and thunderstorms after 2pm. Seas 2 to 3 ft.
Tuesday Night
SSW wind 19 to 22 kt increasing to 22 to 25 kt after midnight. Winds could gust as high as 33 kt. Showers and possibly a thunderstorm. Seas 5 ft building to 10 ft.
Wednesday
SSW wind around 26 kt, with gusts as high as 35 kt. Showers and possibly a thunderstorm before 2pm, then showers likely. Seas 12 to 13 ft.

Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.

*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.
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ABOUT THIS FORECAST

Point Forecast: 40.5°N 70.63°W
Last Update: 1:34 am EDT Jul 18, 2026
Forecast Valid: 7am EDT Jul 18, 2026-6pm EDT Jul 24, 2026
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