Marine Weather Net

Nantucket, MA Weather Forecast


Marine Forecast: Nantucket Sound


Nantucket, Massachusetts

 Lat: 41.28N, Lon: 70.1W

Current Conditions Updated: 553 PM EDT WED SEP 16 2026

Clear


Temp: 67°F
  • Humidity:
  • 81%
  • Winds:
  • 7 MPH SW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.31 in.
  • Dewpoint:
  • 61°F
  • Heat index:
  • 67°F

  • Sunrise:
  • 6:19 AM EDT
  • Sunset:
  • 6:48 PM EDT
  • Moonrise:
  • 12:22 PM EDT
  • Moonset:
  • 9:19 PM EDT

TONIGHT

MOSTLY CLEAR
Lo: 65°F

THURSDAY

MOSTLY SUNNY
Hi: 70°F
Lo: 67°F

FRIDAY

PARTLY SUNNY
Hi: 71°F
Lo: 57°F
Precip: 40%

SATURDAY

SUNNY

Hi: 65°F
Lo: 59°F
Weather Forecast In Detail:
Forecast Issued: 704 PM EDT Wed Sep 16 2026

Tonight...Mostly clear and not as cool. Near steady temperature in the mid 60s. Southwest winds 5 to 10 mph.
Thursday...Mostly sunny. Humid with highs around 70. Southwest winds 5 to 10 mph.
Thursday Night...Mostly cloudy. A chance of showers after midnight. Humid. Near steady temperature in the upper 60s. Southwest winds 10 to 15 mph. Chance of rain 50 percent.
Friday...Partly sunny with a 40 percent chance of showers. Humid with highs in the lower 70s. West winds 10 to 15 mph, becoming north in the afternoon.
Friday Night...Partly cloudy. Less humid with lows in the upper 50s. North winds 15 to 20 mph.
Saturday...Sunny. Highs in the mid 60s.
Saturday Night...Mostly cloudy. Near steady temperature in the upper 50s.
Sunday...Mostly cloudy with a 50 percent chance of showers. Highs in the upper 60s.
Sunday Night...Showers likely. Lows in the upper 50s. Chance of rain 60 percent.
Monday...Mostly cloudy with a 40 percent chance of showers. Highs in the upper 60s. Lows in the upper 50s.
Tuesday...Mostly cloudy with a 40 percent chance of showers. Highs in the upper 60s. Lows in the upper 50s.
Tuesday Night...Mostly cloudy and breezy. Lows in the upper 50s.
Wednesday...Mostly sunny and breezy. Highs in the mid 60s.
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