Grand Isle, Maine 

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United States / Maine / No Metro Area / Aroostook County / Grand Isle / Zip Codes
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Weather in Grand Isle, Maine

The most pleasant months of the year for Grand Isle are July, August and June. In Grand Isle, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Grand Isle with an average high temperature of 75.2°, which ranks it as one of the coolest places in Maine. January is the snowiest month in Grand Isle with 23.2 inches of snow, and 7 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.


Today's Weather - Grand Isle, ME

12 AM PST

Mostly Clear

44°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
OvernightMostly Clear36° / 60°NW 6 mph
Friday NightClear36° / 67°N 2 to 7 mph
Saturday NightShowers And Thunderstorms Likely42° / 65°SE 5 mph
Sunday NightSlight Chance Showers And Thunderstorms then Partly Cloudy41° / 67°E 2 to 6 mph
Monday NightPartly Cloudy then Slight Chance Rain Showers45° / 63°S 6 mph
Tuesday NightChance Rain Showers41° / 62°W 3 to 8 mph
Wednesday NightSlight Chance Rain Showers42° / 63°NW 8 mph

Weather Highlights

Summer High: the July high is around 75 degrees
Winter Low: the January low is -4
Rain: averages 37 inches of rain a year
Snow: averages 96 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Grand Isle area is 5.5 (10=best), which means it is more comfortable than most places in Maine.

5.5 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January18° -4°
February23° -1°
March33° 11°
April46° 27°
May61° 39°
June71° 48°
July75° 54°
August74° 52°
September65° 43°
October51° 32°
November38° 23°
December25°
Hot, Freezing, Rainy, Snowy Days: Grand Isle
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January0311310
February028108
March030117
April022123
May06140
June00130
July00150
August00130
September03120
October016141
November025145
December030139

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.


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MAPS OF GRAND ISLE, MAINE
ZIP CODES IN GRAND ISLE, MAINE
04746


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