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: 556 AM EDT THU SEP 10 2026

Mostly Cloudy
Temp: 74°F
  • Humidity:
  • 81%
  • Winds:
  • 20 MPH SW
  • Gusts:
  • 35 MPH
  • Barometer:
  • 29.83 in.
  • Dewpoint:
  • 68°F
  • Heat index:
  • 74°F

  • Sunrise:
  • 6:13 AM EDT
  • Sunset:
  • 6:59 PM EDT
  • Moonrise:
  • 5:34 AM EDT
  • Moonset:
  • 6:41 PM EDT

TODAY

MOSTLY SUNNY
Hi: 81°F
Lo: 60°F
Precip: 50%

FRIDAY

SUNNY

Hi: 75°F
Lo: 55°F

SATURDAY

SUNNY

Hi: 71°F
Lo: 61°F

SUNDAY

SHOWERS
Hi: 75°F
Lo: 61°F
Precip: 70%
Weather Forecast In Detail:
Forecast Issued: 403 AM EDT Thu Sep 10 2026

Today...Mostly cloudy with a chance of showers this morning, then mostly sunny this afternoon. Highs in the lower 80s. Southwest winds 15 to 20 mph. Gusts up to 45 mph, Decreasing to 35 mph this afternoon. Chance of rain 50 percent.
Tonight...Mostly clear in the evening, then becoming partly cloudy. Cooler with lows around 60. West winds 10 to 15 mph, becoming northwest 5 to 10 mph after midnight.
Friday...Sunny. Highs in the mid 70s. Northwest winds 10 to 15 mph with gusts up to 25 mph.
Friday Night...Clear. Lows in the mid 50s. West winds 5 to 10 mph, becoming north after midnight.
Saturday...Sunny. Highs in the lower 70s. Northeast winds around 5 mph, becoming south in the afternoon.
Saturday Night...Mostly cloudy. Lows in the lower 60s.
Sunday...Numerous showers. Highs in the mid 70s. Chance of rain 70 percent.
Sunday Night...Mostly cloudy with scattered showers. Lows in the mid 60s. Chance of rain 40 percent.
Monday And Monday Night...Partly cloudy. Highs in the lower 70s. Lows in the lower 60s.
Tuesday...Sunny. Highs in the lower 70s.
Tuesday Night And Wednesday...Partly cloudy. Lows in the mid 60s. Highs in the mid 70s.
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