Marine Weather Net

Nantucket, MA Weather Forecast


Marine Forecast: Nantucket Sound


Nantucket, Massachusetts

 Lat: 41.28N, Lon: 70.1W

Current Conditions Updated: 1153 AM EST SUN JAN 18 2026

Hazy
Temp: 38°F
  • Humidity:
  • 82%
  • Winds:
  • 6 MPH N
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.05 in.
  • Dewpoint:
  • 33°F
  • Heat index:
  • 38°F

  • Sunrise:
  • 7:01 AM EST
  • Sunset:
  • 4:37 PM EST
  • Moonrise:
  • 7:15 AM EST
  • Moonset:
  • 4:26 PM EST

THIS AFTERNOON

SNOW AND RAIN
Lo: 31°F
Precip: 100%

MARTIN LUTHER KING JR DAY

PARTLY SUNNY
Lo: 25°F
Precip: 50%

TUESDAY

MOSTLY SUNNY
Lo: 20°F

WEDNESDAY

MOSTLY SUNNY
Hi: 39°F
Lo: 30°F
Weather Forecast In Detail:
Forecast Issued: 1003 AM EST Sun Jan 18 2026

This Afternoon...Snow and rain, then rain. Near steady temperature in the upper 30s. North winds around 5 mph, becoming northeast 10 to 15 mph. Chance of precipitation near 100 percent.
Tonight...Rain in the evening, then snow after midnight. Snow accumulation up to 1 inch. Lows in the lower 30s. Northeast winds 10 to 15 mph, becoming northwest after midnight. Chance of precipitation near 100 percent.
Martin Luther King Jr Day...Mostly cloudy with a chance of snow in the morning, then partly sunny in the afternoon. Brisk. Near steady temperature in the mid 30s. West winds 15 to 25 mph with gusts up to 35 mph. Chance of snow 50 percent.
Monday Night...Mostly cloudy and blustery. Lows in the mid 20s. West winds 15 to 25 mph with gusts up to 40 mph.
Tuesday...Mostly sunny. Light freezing spray. Brisk. Near steady temperature in the mid 20s. West winds 15 to 25 mph with gusts up to 35 mph.
Tuesday Night...Partly cloudy. Light freezing spray. Near steady temperature in the lower 20s.
Wednesday...Mostly sunny. Not as cool with highs in the upper 30s.
Wednesday Night And Thursday...Mostly cloudy. A 30 percent chance of rain showers. Lows in the lower 30s. Highs in the lower 40s.
Thursday Night And Friday...Partly cloudy. Lows in the mid 20s. Highs in the mid 30s.
Friday Night...Mostly cloudy. Near steady temperature in the lower 30s.
Saturday...Mostly cloudy with a chance of snow and rain showers. Near steady temperature in the mid 30s. Chance of precipitation 40 percent.
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