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: 1256 AM EDT FRI MAR 20 2026

Clear


Temp: 36°F
  • Humidity:
  • 75%
  • Winds:
  • 7 MPH SSW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.17 in.
  • Dewpoint:
  • 29°F
  • Heat index:
  • 36°F

  • Sunrise:
  • 6:42 AM EDT
  • Sunset:
  • 6:51 PM EDT
  • Moonrise:
  • 7:15 AM EDT
  • Moonset:
  • 9:11 PM EDT

TONIGHT

MOSTLY CLOUDY
Lo: 35°F

FRIDAY

MOSTLY SUNNY
Hi: 49°F
Lo: 40°F

SATURDAY

PARTLY SUNNY
Hi: 49°F
Lo: 35°F
Precip: 50%

SUNDAY

MOSTLY CLOUDY
Hi: 45°F
Lo: 39°F
Weather Forecast In Detail:
Forecast Issued: 1005 PM EDT Thu Mar 19 2026

Overnight...Mostly cloudy and not as cool. Near steady temperature in the mid 30s. Southwest winds around 5 mph.
Friday...Mostly sunny. Highs in the upper 40s. West winds around 5 mph, increasing to south 15 to 20 mph with gusts up to 35 mph in the afternoon.
Friday Night...Showers. Near steady temperature in the lower 40s. Southwest winds 15 to 20 mph. Gusts up to 40 mph, Decreasing to 30 mph after midnight. Chance of rain 90 percent.
Saturday...Partly sunny with a 50 percent chance of showers. Highs in the upper 40s. West winds 10 to 15 mph, becoming north in the afternoon. Gusts up to 25 mph.
Saturday Night...Mostly cloudy. Lows in the mid 30s. North winds 10 to 15 mph, becoming west around 5 mph after midnight.
Sunday...Mostly cloudy. Highs in the mid 40s.
Sunday Night...Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Monday...Rain likely. Highs in the upper 40s. Chance of rain 60 percent.
Monday Night...Partly cloudy. Lows around 30. Highs in the upper 30s.
Tuesday...Partly cloudy. Lows around 30. Highs in the upper 30s.
Wednesday...Partly sunny with a 30 percent chance of rain. Highs in the lower 40s.
Wednesday Night And Thursday...Mostly cloudy. Lows around 30. Highs in the mid 40s.
SHARE THIS PAGE: