Marine Weather Net

Dennis Port, MA Weather Forecast


Marine Forecast: Nantucket Sound


Dennis Port, Massachusetts

 Lat: 41.66N, Lon: 70.13W

Current Conditions Updated: 1133 AM EDT FRI MAY 15 2026

Overcast
Temp: 54°F
  • Humidity:
  • 80%
  • Winds:
  • 8 MPH WNW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.82 in.
  • Dewpoint:
  • 48°F
  • Heat index:
  • 54°F

  • Sunrise:
  • 5:19 AM EDT
  • Sunset:
  • 7:52 PM EDT
  • Moonrise:
  • 4:06 AM EDT
  • Moonset:
  • 6:56 PM EDT

THIS AFTERNOON

ISOLATED SHOWERS
Lo: 50°F
Precip: 20%

SATURDAY

SUNNY

Hi: 69°F
Lo: 55°F

SUNDAY

SUNNY

Hi: 71°F
Lo: 55°F

MONDAY

MOSTLY SUNNY
Hi: 69°F
Lo: 55°F
Weather Forecast In Detail:
Forecast Issued: 1002 AM EDT Fri May 15 2026

This Afternoon...Cloudy. Isolated showers. Near steady temperature in the mid 50s. North winds 5 to 10 mph. Chance of rain 20 percent.
Tonight...Mostly cloudy. Patchy fog. Near steady temperature around 50. North winds 5 to 10 mph, becoming west after midnight.
Saturday...Sunny. Patchy fog in the morning. Not as cool with highs in the upper 60s. Southwest winds 5 to 10 mph with gusts up to 20 mph, increasing to around 15 mph with gusts up to 30 mph in the afternoon.
Saturday Night...Mostly clear. Lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 25 mph.
Sunday...Sunny. Highs in the lower 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph.
Sunday Night...Mostly clear. Lows in the mid 50s.
Monday...Mostly sunny. Highs in the upper 60s.
Monday Night...Mostly clear. Lows in the mid 50s.
Tuesday...Partly cloudy. Highs in the lower 70s. Lows in the upper 50s.
Wednesday...Partly cloudy. Highs in the lower 70s. Lows in the upper 50s.
Wednesday Night...Mostly cloudy with a 30 percent chance of showers. Lows in the mid 50s.
Thursday...Partly sunny. Highs in the lower 70s.
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