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May 18th, 2026 :: 4:52 am EDT   

Local Weather Report for
Harwich
Massachusetts, United States

 Current Harwich Weather Conditions Updated May 18th at 3:52 am 
Temperature:61°F Dew Point:48°F
Barometer:30.15 inHg Wind:N 15 Mph
Humidity:63.1% Visibility:0M
 
 Harwich Weather Forecast Summary  
 
Today
May 18th
Tuesday
May 19th
Wednesday
May 20th
Thursday
May 21st
Friday
May 22nd
Mostly Sunny Mostly Sunny Mostly Cloudy with Showers Mix of Cloud and Sun Mostly Sunny
59°F
59°F
58°F
61°F
58°F
60°F
50°F
56°F
52°F
 
 Harwich Detailed Weather Forecast  
 
Monday, May 18th, 2026
Overnight Temperature: 58°F
Mostly clear. Windy at times.
Morning Temperature: 56°F
Mostly sunny. Windy at times.
Afternoon Temperature: 57°F
Sunny with cloudy periods. Windy at times.
Evening Temperature: 58°F
Clear. Windy at times.
Tuesday, May 19th, 2026
Overnight Temperature: 59°F
Clear. Windy.
Morning Temperature: 58°F
Mostly sunny. Windy.
Afternoon Temperature: 58°F
Mostly sunny. Wind 20 to 30 mph.
Evening Temperature: 59°F
Clear with cloudy periods. Windy.
Wednesday, May 20th, 2026
Overnight Temperature: 59°F
A mix of cloudy and clear skies with a chance of showers. Windy.
Morning Temperature: 58°F
Sunny with a chance of showers. Windy.
Afternoon Temperature: 60°F
Mostly sunny. Wind 20 to 30 mph.
Evening Temperature: 60°F
Mostly cloudy with showers likely. Windy.
Thursday, May 21st, 2026
Overnight Temperature: 59°F
Mostly cloudy with a chance of showers. Windy.
Morning Temperature: 54°F
A mix of cloud and sun. Windy.
Afternoon Temperature: 51°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 53°F
A mix of cloudy and clear skies. Windy at times.
Friday, May 22nd, 2026
Overnight Temperature: 53°F
Mostly clear. Windy at times.
Morning Temperature: 54°F
Mostly sunny. Windy at times.
Afternoon Temperature: 55°F
Sunny with cloudy periods. Windy at times.
Evening Temperature: 55°F
A mix of cloudy and clear skies. Windy at times.
Saturday, May 23rd, 2026
Overnight Temperature: 55°F
Mostly cloudy. Windy at times.
Morning Temperature: 55°F
Mostly cloudy.
Afternoon Temperature: 54°F
A mix of cloud and sun.
Evening Temperature: 53°F
A mix of cloudy and clear skies. Windy.
Sunday, May 24th, 2026
Overnight Temperature: 53°F
A mix of cloudy and clear skies. Windy at times.
Morning Temperature: 53°F
A mix of cloud and sun. Windy.
Afternoon Temperature: 53°F
Mostly sunny. Windy.
Evening Temperature: 53°F
Mostly clear. Windy.
Monday, May 25th, 2026
Overnight Temperature: 53°F
Mostly cloudy. Windy.
Morning Temperature: 53°F
A mix of cloud and sun. Windy.
Afternoon Temperature: 55°F
Sunny. Windy.
Evening Temperature: 56°F
Mostly cloudy. Windy.
Tuesday, May 26th, 2026
Overnight Temperature: 57°F
Cloudy. Windy.
Morning Temperature: 58°F
Cloudy with a chance of showers. Windy.
Afternoon Temperature: 58°F
Cloudy with a few showers. Wind 20 to 30 mph.
Evening Temperature: 58°F
Cloudy with a few showers. Windy at times.





 

  [ Local Weather Report ]
Chatham, MA 
3:52 AM  61°F
 
 
Brewster, MA 
 
Dennis, MA 
3:56 AM  57°F
 
 
Yarmouth, MA 
3:56 AM  57°F
 
 
Orleans, MA 
 
Hyannis, MA 
3:56 AM  57°F
 
 
Eastham, MA 
 
Barnstable, MA 
3:56 AM  57°F
 
 
Mashpee, MA 
3:55 AM  57°F
 
 
Sandwich, MA 

 
This WeatherCity Weather Forecast for Harwich, Massachusetts, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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