Weather forecast for tomorrowNewcastle, ME

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 59°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 6mphS 179°
  • Humidity: 66%
  • UV index: 3
  • Sunrise: 6:58 am EDT
  • Sunset: 5:48 pm EDT
  • ▼
Tomorrow, on Monday, mostly clear skies and sunshine will create ideal daytime conditions.
Expected temperatures will peak at a refreshing 59°F and dip to a minimum of a wintry 39.2°F.
The expected daytime maximum should align with the typical October high of 56.1°F.
Sunrise will be at 6:58 am and sunset at 5:48 pm; tomorrow's daylight will last for 10h and 50min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 59°C.
Coldest hour: 6 am 37°C.

Chance of precipitation

Highest chance: 9 pm 8%.

Hourly weather forecast

  • 12 am
  • 41°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 1mphS 172°
  • Humidity: 81%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 39°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 1mphS 185°
  • Humidity: 85%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 1mphSSE 165°
  • Humidity: 85%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 37°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 0mphSSW 195°
  • Humidity: 89%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 6:58 am
  • 8 am
  • 43°F
  • Feels like:
    43°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 0mphSSW 193°
  • Humidity: 87%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 52°F
  • Feels like:
    52°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSSW 208°
  • Humidity: 70%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 57°F
  • Feels like:
    57°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphS 172°
  • Humidity: 57%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 59°F
  • Feels like:
    57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphS 170°
  • Humidity: 52%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 57°F
  • Feels like:
    57°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphSSE 160°
  • Humidity: 56%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
Sunset: 5:48 pm
  • 6 pm
  • 50°F
  • Feels like:
    50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 1mphSSE 159°
  • Humidity: 73%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 45°F
  • Feels like:
    45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 0mphSE 143°
  • Humidity: 91%
  • Pressure: 30.33"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 10 pm
  • 41°F
  • Feels like:
    41°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 0mphNNE 32°
  • Humidity: 100%
  • Pressure: 30.3"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
Tomorrow, primarily sun-filled and occasionally dull weather is predicted.
The temperature will vary between a minimum of 37.4°F and a maximum of 59°F. The warmest part of the day will be at 2 pm and 3 pm.
The maximum temperature will be close to October's average highest temperature of 56.1°F. The lowest temperature is more alike with November's average minimum of 34.9°F than the usual minimum of 45.3°F in October.
Updated: Oct 18, 2026 @ 05:23:33 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, open skies and radiant sunshine are expected.

Tomorrow, the highest temperature will be 59°F, while the lowest temperature will be 39.2°F.
The maximum temperature will be in line with the average highest temperature of 56.1°F in October. The lowest temperature will be moderately lower than the average low of 45.3°F.

On Monday, in Newcastle, sunrise will be at 6:58 am and sunset at 5:48 pm (EDT).

In Newcastle, Maine, tomorrow, there will be 10h and 50min of daylight.