Weather forecast for 10 daysHarwich, MA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 54°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphNNE 33°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 6:56 am EDT
  • Sunset: 5:54 pm EDT
  • ▼
Tomorrow, in Harwich, skies are expected to be clear and full of sunshine.
Minor variations in temperature are anticipated, peaking at a crisp 53.6°F and slightly dropping to a low of a chilly 44.6°F.
Tomorrow, the temperature will resemble November's climate with a high near 51.3°F.
Sunrise will be at 6:56 am and sunset at 5:54 pm; tomorrow's daylight will last for 10h and 59min.

10-day overview

Daily temperatures

Maximum temperature: 59°C.
Coldest day: tomorrow 54°C.

Chance of precipitation

Highest chance: Thursday 51%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphN 6°
  • Humidity: 59%
  • UV index: 0
  • Sunrise: 6:54 am EDT
  • Sunset: 5:56 pm EDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 54°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphNNE 33°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 6:56 am EDT
  • Sunset: 5:54 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 57°F
  • 52°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 14mphENE 57°
  • Humidity: 72%
  • UV index: 3
  • Sunrise: 6:57 am EDT
  • Sunset: 5:53 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 59°F
  • 50°F
Cloudy
Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 21mphNNE 26°
  • Humidity: 76%
  • UV index: 2
  • Sunrise: 6:58 am EDT
  • Sunset: 5:51 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 57°F
  • 52°F
PM Showers / Wind
PM Showers / Wind
  • Precip. probability: 35%
  • Precipitation: 0.24"
  • Wind: 22mphNE 44°
  • Humidity: 73%
  • UV index: 2
  • Sunrise: 6:59 am EDT
  • Sunset: 5:50 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 57°F
  • 50°F
AM Showers
AM Showers
  • Precip. probability: 51%
  • Precipitation: 0.08"
  • Wind: 20mphNNE 20°
  • Humidity: 80%
  • UV index: 2
  • Sunrise: 7:00 am EDT
  • Sunset: 5:48 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 55°F
  • 48°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 21mphNNE 24°
  • Humidity: 64%
  • UV index: 4
  • Sunrise: 7:01 am EDT
  • Sunset: 5:47 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 55°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 16mphNE 36°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 7:03 am EDT
  • Sunset: 5:45 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 59°F
  • 52°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 24%
  • Precipitation: 0.12"
  • Wind: 12mphNE 36°
  • Humidity: 73%
  • UV index: 3
  • Sunrise: 7:04 am EDT
  • Sunset: 5:44 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 59°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 12mphNNE 12°
  • Humidity: 83%
  • UV index: 3
  • Sunrise: 7:05 am EDT
  • Sunset: 5:43 pm EDT
  • ▼
Models point to a combination of overcast, sun-filled and rain-filled weather is expected.
Rainfall is expected on Wednesday, Thursday and next Sunday.
The maximum temperature will be very similar over the next several days. Maximum temperatures will fall between 53.6°F and 59°F, while the minimum temperature is forecast to range between 41°F and 51.8°F.
With a maximum temperature of 59°F, Tuesday, next Sunday and Monday will be the warmest days; expect the coldest day on Sunday with a high of 53.6°F.
Updated: Oct 17, 2026 @ 21:06:16 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Harwich, a sun-drenched sky is anticipated.

Tomorrow, the maximum temperature will be 53.6°F, while the minimum temperature will be 44.6°F.
The highest temperature will be a few degrees lower than the average maximum of 59.5°F in October. The lowest temperature tomorrow will be significantly lower than the average low of 54.9°F.

On Sunday, in Harwich, sunrise will be at 6:56 am and sunset at 5:54 pm (EDT).

Tomorrow, the daylight will last for 10h and 59min.