Grand Isle, VT Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grand Isle, VT in one place.
Sunny, with a high near 80. Northwest wind around 7 mph.
Local Weather Overview
This forecast page for Grand Isle, VT 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: Jul 17, 2026 1:43 PM EDT.
The active forecast window currently covers Jul 17 to Jul 23, 2026 for Grand Isle, VT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 17 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 1:43 PM EDT
- Forecast office
- BTV
- Source
- NOAA / NWS
Daily Outlook
This Week in Grand Isle
Saturday looks like the warmest upcoming period in Grand Isle at 83 degrees F.
Sunday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Tuesday at about 15 to 18 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 1:43 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- BTV
- Radar station
- KCXX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 61. Southwest wind 1 to 7 mph. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers between 7am and 2pm, then areas of smoke and showers and thunderstorms likely between 2pm and 5pm, then patchy smoke and showers and thunderstorms likely. Mostly cloudy, with a high near 83. South wind 8 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms before 5am. Mostly cloudy, with a low around 60. Southwest wind 9 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Mostly sunny, with a high near 75. Northwest wind around 15 mph. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 58. West wind 5 to 13 mph.
Sunny, with a high near 81. Southwest wind around 5 mph.
Partly cloudy, with a low around 64. South wind 2 to 14 mph, with gusts as high as 24 mph.
A chance of rain showers between 8am and 2pm, then showers and thunderstorms. Partly sunny, with a high near 82. South wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a low around 63. South wind 9 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Rain showers likely before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Southwest wind around 10 mph. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 60. West wind around 8 mph. Chance of precipitation is 50%.
Mostly sunny, with a high near 78. West wind around 7 mph.
Mostly clear, with a low around 60. West wind around 3 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jul 17
|
Sunny
|
80°F |
7 mph
NW
|
|
Tonight
Jul 17
|
Mostly Cloudy
|
61°F |
1 to 7 mph
SW
|
|
Saturday
Jul 18
|
Areas Of Smoke
|
83°F |
8 to 15 mph
S
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms
|
60°F |
9 to 14 mph
SW
|
|
Sunday
Jul 19
|
Mostly Sunny
|
75°F |
15 mph
NW
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
58°F |
5 to 13 mph
W
|
|
Monday
Jul 20
|
Sunny
|
81°F |
5 mph
SW
|
|
Monday Night
Jul 20
|
Partly Cloudy
|
64°F |
2 to 14 mph
S
|
|
Tuesday
Jul 21
|
Showers And Thunderstorms
|
82°F |
15 to 18 mph
S
|
|
Tuesday Night
Jul 21
|
Showers And Thunderstorms
|
63°F |
9 to 16 mph
S
|
|
Wednesday
Jul 22
|
Chance Showers And Thunderstorms
|
79°F |
10 mph
SW
|
|
Wednesday Night
Jul 22
|
Chance Showers And Thunderstorms
|
60°F |
8 mph
W
|
|
Thursday
Jul 23
|
Mostly Sunny
|
78°F |
7 mph
W
|
|
Thursday Night
Jul 23
|
Mostly Clear
|
60°F |
3 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grand Isle.
