Weather in Grand Isle, Maine
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 05:32 PM ET · Refreshes every hour
70°F
Partly cloudy
Feels like 61°F
23%
Humidity
12 mph
Wind Speed
About Weather in Grand Isle
Grand Isle is located in Maine (coordinates: 47.307363°N, 68.158702°W). Weather data is sourced from Open-Meteo, a free and open meteorological API using data from national weather services including NOAA.
All temperatures are displayed in Fahrenheit. Wind speed is in miles per hour.