Marine Weather Net

Nantucket, MA Weather Forecast


Marine Forecast: Nantucket Sound


Nantucket, Massachusetts

 Lat: 41.28N, Lon: 70.1W

Current Conditions Updated: 153 PM EDT TUE SEP 23 2025

Clear


Temp: 72°F
  • Humidity:
  • 78%
  • Winds:
  • 16 MPH SW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.01 in.
  • Dewpoint:
  • 65°F
  • Heat index:
  • 73°F

  • Sunrise:
  • 6:26 AM EDT
  • Sunset:
  • 6:36 PM EDT
  • Moonrise:
  • 8:15 AM EDT
  • Moonset:
  • 7:10 PM EDT

THIS AFTERNOON

MOSTLY SUNNY
Lo: 65°F

WEDNESDAY

CHANCE OF SHOWERS
Hi: 71°F
Lo: 65°F
Precip: 60%

THURSDAY

SHOWERS
Hi: 71°F
Lo: 69°F
Precip: 60%

FRIDAY

SHOWERS
Hi: 71°F
Lo: 61°F
Precip: 70%
Weather Forecast In Detail:
Forecast Issued: 103 PM EDT Tue Sep 23 2025

This Afternoon...Mostly sunny. Near steady temperature around 70. Southwest winds 10 to 15 mph.
Tonight...Partly cloudy in the evening, then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Patchy fog after midnight. Humid with lows in the lower 60s. Southwest winds 10 to 15 mph. Chance of rain 30 percent.
Wednesday...Mostly cloudy. Showers likely, mainly in the morning. Patchy fog. Humid with highs in the lower 70s. Northwest winds 5 to 10 mph, becoming east in the afternoon. Chance of rain 60 percent.
Wednesday Night...Cloudy with a 50 percent chance of showers. Patchy fog. Humid. Near steady temperature in the mid 60s. East winds 5 to 10 mph.
Thursday...Showers likely. Humid with highs in the lower 70s. Southeast winds 10 to 15 mph. Chance of rain 60 percent.
Thursday Night...Showers likely. Near steady temperature in the upper 60s. Chance of rain 70 percent.
Friday...Showers likely. Highs in the lower 70s. Chance of rain 70 percent.
Friday Night...Mostly cloudy with a 50 percent chance of showers. Lows in the lower 60s.
Saturday...Partly sunny with a 40 percent chance of showers. Highs in the lower 70s.
Saturday Night...Mostly cloudy with a 30 percent chance of showers. Near steady temperature in the mid 60s.
Sunday...Partly sunny with a 30 percent chance of showers. Highs in the lower 70s.
Sunday Night And Monday...Partly cloudy. Lows around 60. Highs in the upper 60s.
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