Marine Weather Net

Nantucket, MA Weather Forecast


Marine Forecast: Nantucket Sound


Nantucket, Massachusetts

 Lat: 41.28N, Lon: 70.1W

Current Conditions Updated: 153 AM EDT TUE MAY 19 2026

Fair
Temp: 56°F
  • Humidity:
  • 100%
  • Winds:
  • 13 MPH SW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.16 in.
  • Dewpoint:
  • 56°F
  • Heat index:
  • 56°F

  • Sunrise:
  • 5:16 AM EDT
  • Sunset:
  • 7:54 PM EDT
  • Moonrise:
  • 7:31 AM EDT
  • Moonset:
  • 11:42 PM EDT

TONIGHT

MOSTLY CLOUDY
Lo: 59°F

TUESDAY

PARTLY SUNNY
Hi: 69°F
Lo: 60°F

WEDNESDAY

PARTLY SUNNY
Hi: 69°F
Lo: 55°F
Precip: 40%

THURSDAY

PARTLY SUNNY
Hi: 65°F
Lo: 51°F
Precip: 40%
Weather Forecast In Detail:
Forecast Issued: 104 AM EDT Tue May 19 2026

Rest Of Tonight...Mostly cloudy. Patchy fog. Near steady temperature in the upper 50s. Southwest winds 10 to 15 mph.
Tuesday...Partly sunny. Patchy fog in the morning. Highs in the upper 60s. Southwest winds 15 to 20 mph with gusts up to 30 mph.
Tuesday Night...Mostly cloudy. Patchy fog after midnight. Visibility one quarter mile or less at Times after midnight. Near steady temperature around 60. Southwest winds 15 to 20 mph with gusts up to 30 mph.
Wednesday...Partly sunny with a 40 percent chance of showers. Patchy fog. Highs in the upper 60s. Southwest winds 15 to 20 mph with gusts up to 30 mph.
Wednesday Night...Showers likely. Lows in the mid 50s. West winds 15 to 20 mph, becoming northwest 10 to 15 mph after midnight. Chance of rain 70 percent.
Thursday...Partly sunny with a 40 percent chance of showers. Highs in the mid 60s.
Thursday Night And Friday...Partly cloudy. Lows in the lower 50s. Highs in the lower 60s.
Friday Night...Mostly cloudy with a 40 percent chance of showers. Lows in the lower 50s.
Saturday...Showers likely. Highs in the lower 60s. Chance of rain 60 percent.
Saturday Night...Showers likely. Near steady temperature in the mid 50s. Chance of rain 70 percent.
Sunday...Showers likely. Highs in the lower 60s. Chance of rain 70 percent.
Sunday Night...Mostly cloudy with a 40 percent chance of showers. Lows in the lower 50s.
Memorial Day...Mostly cloudy with a 30 percent chance of showers. Highs in the lower 60s.
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