Grand Isle, ME Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grand Isle, ME in one place.
Sunny, with a high near 76. West wind around 6 mph.
Local Weather Overview
This forecast page for Grand Isle, ME is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jun 2, 2026 5:05 AM EDT.
The active forecast window currently covers Jun 3 to Jun 8, 2026 for Grand Isle, ME.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 3 to Jun 8, 2026
- Latest sync
- Jun 2, 2026 5:05 AM EDT
- Forecast office
- CAR
- Source
- NOAA / NWS
Daily Outlook
This Week in Grand Isle
Thursday looks like the warmest upcoming period in Grand Isle at 83 degrees F.
Saturday Night is the coolest period ahead with temperatures near 46 degrees F.
The strongest winds are forecast for Thursday at about 5 to 10 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 2, 2026 5:05 AM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- CAR
- Radar station
- KCBW
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 52. Southwest wind around 5 mph.
Sunny, with a high near 83. Southwest wind 5 to 10 mph.
Partly cloudy, with a low around 56. West wind 6 to 9 mph.
A chance of rain showers after 10am. Partly sunny, with a high near 73. Chance of precipitation is 40%.
A chance of rain showers before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.
A chance of rain showers. Partly sunny, with a high near 68. Chance of precipitation is 40%.
A slight chance of rain showers before 10pm. Partly cloudy, with a low around 46. Chance of precipitation is 20%.
Sunny, with a high near 72.
Mostly clear, with a low around 49.
Sunny, with a high near 75.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 3
|
Sunny
|
76°F |
6 mph
W
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
52°F |
5 mph
SW
|
|
Thursday
Jun 4
|
Sunny
|
83°F |
5 to 10 mph
SW
|
|
Thursday Night
Jun 4
|
Partly Cloudy
|
56°F |
6 to 9 mph
W
|
|
Friday
Jun 5
|
Chance Rain Showers
|
73°F |
6 mph
NW
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
50°F |
6 mph
N
|
|
Saturday
Jun 6
|
Chance Rain Showers
|
68°F |
7 mph
NE
|
|
Saturday Night
Jun 6
|
Slight Chance Rain Showers then Partly Cloudy
|
46°F |
5 mph
W
|
|
Sunday
Jun 7
|
Sunny
|
72°F |
6 mph
NW
|
|
Sunday Night
Jun 7
|
Mostly Clear
|
49°F |
5 mph
SW
|
|
Monday
Jun 8
|
Sunny
|
75°F |
2 to 6 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grand Isle.