Weather forecast for tomorrowHarborside, ME

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 54°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphSW 231°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 6:54 am EDT
  • Sunset: 5:46 pm EDT
  • ▼
On Sunday, October 18, sunny skies and pleasant visibility are also expected.
Temperatures are forecasted to range from a maximum of a fresh 53.6°F to a minimum of a frosty 42.8°F.
October's standard high of 55.8°F is predicted to be reached during the day.
Sunrise will be at 6:54 am and sunset at 5:46 pm; tomorrow's daylight will last for 10h and 52min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 52°C.
Coldest period: 3 am - 6 am 34°C.

Chance of precipitation

Highest chance: 9 pm 2%.

Hourly weather forecast

  • 12 am
  • 36°F
  • Feels like:
    30°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphNW 320°
  • Humidity: 62%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 34°F
  • Feels like:
    30°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphNW 306°
  • Humidity: 66%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 34°F
  • Feels like:
    30°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphNW 308°
  • Humidity: 69%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 34°F
  • Feels like:
    34°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphWNW 298°
  • Humidity: 73%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 6:54 am
  • 8 am
  • 36°F
  • Feels like:
    36°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphWNW 292°
  • Humidity: 73%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 43°F
  • Feels like:
    41°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphWSW 253°
  • Humidity: 52%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 48°F
  • Feels like:
    45°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSW 215°
  • Humidity: 45%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 50°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphSSW 205°
  • Humidity: 43%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 50°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSW 204°
  • Humidity: 47%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
Sunset: 5:46 pm
  • 6 pm
  • 48°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSW 210°
  • Humidity: 56%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 45°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphSSW 207°
  • Humidity: 67%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 45°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 5mphSSW 195°
  • Humidity: 75%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, bright and mostly sunny weather is expected.
The temperature will be between a minimum of 32°F and a maximum of 51.8°F. The warmest part of the day is expected around 3 pm.
Tomorrow, the high temperature will be alike with October's average. The nighttime low tomorrow will be also alike with October's typical minimum temperature.
Updated: Oct 17, 2026 @ 23:33:24 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

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

Tomorrow, the highest temperature will be 53.6°F, while the lowest temperature will be 42.8°F.
The highest temperature will be in line with the average maximum of 55.8°F in October. Tomorrow, the lowest temperature will be also in line with the average low temperature.

On Sunday, in Harborside, sunrise will be at 6:54 am and sunset at 5:46 pm (EDT).

Tomorrow, the daylight will last for 10h and 52min.