Grand Isle, ME weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Grand Isle now
Loading the National Weather Service forecast…
Grand Isle weather by the hour
Grand Isle weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Grand Isle.
This week in Grand Isle
Sunrise, sunset and moon in Grand Isle
What is the weather usually like in Grand Isle?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 76°F average high
- Januarycoldest month · 4°F average low
- 32.9 inprecipitation per year · 836 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Grand Isle: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station FRENCHVILLE AROOSTOOK AP, ME US (USW00004836), adjusted for the elevation of Grand Isle.
Grand Isle weather month by month
Sunrise and sunset in Grand Isle through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:12 AM | 4:11 PM | 8 h 58 min |
| February | 6:35 AM | 4:57 PM | 10 h 22 min |
| March | 6:43 AM | 6:39 PM | 11 h 56 min |
| April | 5:42 AM | 7:22 PM | 13 h 40 min |
| May | 4:54 AM | 8:03 PM | 15 h 9 min |
| June | 4:33 AM | 8:32 PM | 15 h 58 min |
| July | 4:50 AM | 8:26 PM | 15 h 36 min |
| August | 5:28 AM | 7:46 PM | 14 h 18 min |
| September | 6:08 AM | 6:46 PM | 12 h 37 min |
| October | 6:49 AM | 5:46 PM | 10 h 57 min |
| November | 6:35 AM | 3:59 PM | 9 h 23 min |
| December | 7:10 AM | 3:44 PM | 8 h 33 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Grand Isle?
Grand Isle has a warm-summer humid continental climate. The warmest month is July, with an average high of 76°F (25°C), and the coldest is January, with average lows of 4°F (-16°C).
It gets about 32.9 inches (836 mm) of precipitation a year. The wettest month is June and the driest is February.
The best time to visit Grand Isle is June to September. At 745 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Grand Isle
Weather in towns near Grand Isle
Questions about the weather in Grand Isle
What is the hottest month in Grand Isle?
July, with an average high of 76°F (25°C).
What is the coldest month in Grand Isle?
January, with an average low of 4°F (-16°C).
How much does it rain in Grand Isle?
About 32.9 inches (836 mm) a year; the wettest month is June.
Does it snow in Grand Isle?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Grand Isle?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Grand Isle have?
Warm-summer humid continental (Köppen Dfb).
What is the weather like in Grand Isle in November?
Highs average 39°F and lows 27°F, with about 2.6 inches of precipitation.
What time is sunrise in Grand Isle?
Around 6:35 AM in mid-November, and sunset around 3:59 PM. Today’s exact times are shown above.
Where does this Grand Isle weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Grand Isle.
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