Marine Weather Net

Harwich, MA Weather Forecast


Marine Forecast: Nantucket Sound


Harwich, Massachusetts

 Lat: 41.69N, Lon: 70.08W

Current Conditions Updated: 152 AM EDT WED OCT 29 2025

Overcast
Temp: 52°F
  • Humidity:
  • 74%
  • Winds:
  • 15 MPH NE
  • Gusts:
  • 30 MPH
  • Barometer:
  • 30.13 in.
  • Dewpoint:
  • 44°F
  • Heat index:
  • 52°F

  • Sunrise:
  • 7:06 AM EDT
  • Sunset:
  • 5:38 PM EDT
  • Moonrise:
  • 2:13 PM EDT
  • Moonset:
  • 11:54 PM EDT

TONIGHT

CHANCE OF SHOWERS
Lo: 50°F
Precip: 40%

WEDNESDAY

CHANCE OF SHOWERS
Hi: 55°F
Lo: 50°F
Precip: 40%

THURSDAY

SHOWERS
Hi: 61°F
Lo: 55°F
Precip: 70%

FRIDAY

SHOWERS
Hi: 61°F
Lo: 49°F
Precip: 90%
Weather Forecast In Detail:
Forecast Issued: 104 AM EDT Wed Oct 29 2025

Rest Of Tonight...Cloudy with a 40 percent chance of showers. Near steady temperature around 50. Northeast winds 15 to 20 mph with gusts up to 30 mph.
Wednesday...Cloudy with a 40 percent chance of showers. Highs in the mid 50s. Northeast winds 15 to 20 mph with gusts up to 30 mph.
Wednesday Night...Mostly cloudy. A chance of showers in the evening. Near steady temperature in the lower 50s. Northeast winds 15 to 20 mph. Chance of rain 40 percent.
Thursday...Showers likely. Highs in the lower 60s. Northeast winds 15 to 20 mph. Gusts up to 30 mph in the afternoon. Chance of rain 70 percent.
Thursday Night...Showers. Near steady temperature in the mid 50s. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.
Friday...Showers, breezy with highs in the lower 60s. Chance of rain 90 percent.
Friday Night...Partly cloudy and windy. Lows in the upper 40s.
Saturday...Sunny, windy with highs in the upper 50s.
Saturday Night...Partly cloudy. Lows in the lower 40s. Highs in the mid 50s.
Sunday...Partly cloudy. Lows in the lower 40s. Highs in the mid 50s.
Monday...Partly sunny with a 40 percent chance of showers. Highs in the mid 50s.
Monday Night...Showers likely. Lows in the mid 40s. Chance of rain 70 percent.
Tuesday...Showers likely. Highs in the upper 50s. Chance of rain 60 percent.
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