Marine Weather Net

Dennis, MA Weather Forecast


Marine Forecast: Cape Cod BayCape Cod Bay


Dennis, Massachusetts

 Lat: 41.74N, Lon: 70.19W

Current Conditions Updated: 156 PM EST TUE JAN 20 2026

Clear


Temp: 26°F
  • Humidity:
  • 39%
  • Winds:
  • 16 MPH W
  • Gusts:
  • 25 MPH
  • Barometer:
  • 30.1 in.
  • Dewpoint:
  • 5°F
  • Heat index:
  • 26°F

  • Sunrise:
  • 7:02 AM EST
  • Sunset:
  • 4:38 PM EST
  • Moonrise:
  • 8:16 AM EST
  • Moonset:
  • 6:43 PM EST

THIS AFTERNOON

SUNNY

Hi: 29°F
Lo: 14°F

WEDNESDAY

PARTLY SUNNY
Hi: 40°F
Lo: 31°F

THURSDAY

PARTLY SUNNY
Hi: 41°F
Lo: 10°F
Precip: 30%

SATURDAY

MOSTLY SUNNY
Hi: 20°F
Lo: 20°F
Weather Forecast In Detail:
Forecast Issued: 103 PM EST Tue Jan 20 2026

This Afternoon...Sunny. Highs in the upper 20s. West winds 10 to 15 mph with gusts up to 30 mph.
Tonight...Mostly clear. Lows 11 to 17. West winds 10 to 15 mph with gusts up to 30 mph.
Wednesday...Sunny in the morning, then becoming partly sunny. Not as cool with highs around 40. Southwest winds 10 to 15 mph with gusts up to 25 mph.
Wednesday Night...Cloudy with a chance of rain. Not as cool with lows in the lower 30s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.
Thursday...Partly sunny with a 30 percent chance of rain. Highs in the lower 40s. Southwest winds 15 to 20 mph with gusts up to 35 mph.
Thursday Night...Partly cloudy. Lows in the upper 20s.
Friday And Friday Night...Mostly cloudy. Highs in the mid 30s. Lows around 10 above.
Saturday...Mostly sunny. Much colder with highs around 20.
Saturday Night...Mostly cloudy with a 40 percent chance of snow. Near steady temperature 10 to 15.
Sunday And Sunday Night...Cloudy with a 50 percent chance of snow. Cold. Highs in the mid 20s. Lows around 20.
Monday...Mostly cloudy with a 50 percent chance of snow. Highs in the upper 20s.
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