Weather forecast for tomorrowGrand Isle, ME
Weather forecast for tomorrow
Monday Oct 19, 2026
- 63°F
- 34°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 10mphSSW 193°
- Humidity: 61%
- UV index: 3
- Sunrise: 6:57 am EDT
- Sunset: 5:37 pm EDT
- details ▼
Tomorrow, uninterrupted sunshine is also anticipated.
A stark contrast will be observed between the day's peak temperature of a comfortable 62.6°F and the night's low of a wintry 33.8°F.
The expected high of 62.6°F appears seasonally off, better matching September's typical values.
Sunrise will be at 6:57 am and sunset at 5:37 pm; tomorrow's daylight will last for 10h and 41min.
A stark contrast will be observed between the day's peak temperature of a comfortable 62.6°F and the night's low of a wintry 33.8°F.
The expected high of 62.6°F appears seasonally off, better matching September's typical values.
Sunrise will be at 6:57 am and sunset at 5:37 pm; tomorrow's daylight will last for 10h and 41min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 61°C.
Coldest period: 12 am - 6 am 36°C.
Coldest period: 12 am - 6 am 36°C.
Chance of precipitation
Highest chance: 12 am - 9 am 5%.
Hourly weather forecast
- 12 am
- 36°F
- Feels like:32°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphSSE 162°
- Humidity: 86%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 36°F
- Feels like:30°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 5mphSSE 167°
- Humidity: 87%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 36°F
- Feels like:30°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphS 171°
- Humidity: 84%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 36°F
- Feels like:30°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphS 169°
- Humidity: 84%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 6:57 am
- 8 am
- 34°F
- Feels like:30°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 5mphS 173°
- Humidity: 85%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 43°F
- Feels like:37°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphS 180°
- Humidity: 76%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 52°F
- Feels like:48°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphSSW 192°
- Humidity: 59%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 2 pm
- 59°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphSSW 204°
- Humidity: 47%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 63°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphSSW 210°
- Humidity: 42%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
Sunset: 5:37 pm
- 6 pm
- 59°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphSSW 208°
- Humidity: 48%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 8 pm
- 48°F
- Feels like:48°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 3mphSSW 213°
- Humidity: 70%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 45°F
- Feels like:45°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphWSW 244°
- Humidity: 81%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, a combination of sunny and gloomy weather is forecasted.
The temperature will vary between the lowest temperature of 33.8°F and the highest temperature of 62.6°F. The warmest part of the day will be around 4 pm.
The temperature will feel more resembling September's average high than the expected maximum for October. The night temperature will be close to the standard October low of 36°F.
The temperature will vary between the lowest temperature of 33.8°F and the highest temperature of 62.6°F. The warmest part of the day will be around 4 pm.
The temperature will feel more resembling September's average high than the expected maximum for October. The night temperature will be close to the standard October low of 36°F.
Updated: Oct 18, 2026 @ 12:54:11 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Monday, conditions will remain bright with clear skies.
Tomorrow, the maximum temperature will be 62.6°F, while the minimum temperature will be 33.8°F.
The maximum temperature will be uncommonly higher than the average highest temperature of 49.5°F in October. The lowest temperature will be in line with the average low of 36°F.
The maximum temperature will be uncommonly higher than the average highest temperature of 49.5°F in October. The lowest temperature will be in line with the average low of 36°F.
On Monday, in Grand Isle, sunrise will be at 6:57 am and sunset at 5:37 pm (EDT).
Tomorrow, the daylight will last for 10h and 41min.
