Marine Weather Net

Dennis Port, MA Weather Forecast


Marine Forecast: Nantucket Sound


Dennis Port, Massachusetts

 Lat: 41.66N, Lon: 70.13W

Current Conditions Updated: 1152 PM EST MON FEB 2 2026

Clear


Temp: 20°F
  • Humidity:
  • 81%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.99 in.
  • Dewpoint:
  • 15°F
  • Heat index:
  • 20°F

  • Sunrise:
  • 6:51 AM EST
  • Sunset:
  • 4:55 PM EST
  • Moonrise:
  • 7:12 PM EST
  • Moonset:
  • 7:50 AM EST

TONIGHT

CLEAR

Lo: 18°F

TUESDAY

SUNNY

Hi: 35°F
Lo: 21°F

WEDNESDAY

MOSTLY SUNNY
Hi: 31°F
Lo: 18°F

FRIDAY

PARTLY SUNNY
Hi: 30°F
Lo: 14°F
Weather Forecast In Detail:
Forecast Issued: 1002 PM EST Mon Feb 02 2026

Overnight...Clear. Lows 14 to 22. Northwest winds 5 to 10 mph with gusts up to 20 mph.
Tuesday...Sunny. Highs in the mid 30s. West winds 5 to 10 mph, becoming southwest in the afternoon.
Tuesday Night...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 20s. West winds 5 to 10 mph. Gusts up to 20 mph in the evening.
Wednesday...Mostly sunny. Highs in the lower 30s. West winds 5 to 10 mph. Gusts up to 20 mph in the afternoon.
Wednesday Night...Partly cloudy. Lows 16 to 22. Northwest winds 5 to 10 mph. Gusts up to 20 mph in the evening.
Thursday And Thursday Night...Partly cloudy. Highs in the upper 20s. Lows 15 to 20.
Friday...Partly sunny. Highs around 30.
Friday Night And Saturday...Mostly cloudy. A 50 percent chance of snow. Windy, cold. Lows around 10 above. Highs around 20.
Saturday Night...Mostly cloudy with a 40 percent chance of snow. A chance of heavy freezing spray. Windy, cold with lows 5 to 10 above. Wind chill values as low as 15 below.
Sunday...Mostly sunny. A chance of heavy freezing spray. Windy, cold with highs around 20. Wind chill values as low as 15 below in the morning.
Sunday Night And Monday...Partly cloudy. Cold. Lows 5 to 15 above. Highs in the lower 20s.
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