Live Weather & Forecast
Weather in Grand Isle
Vermont, United States · Real-time conditions & 3-day outlook
8°C
Feels like 3°C
47°F / Feels 38°F
Overcast
Grand Isle, Vermont
🌞 Daytime
Updated: 2026-04-13 08:15
Humidity
74%
Wind
46.4 km/h S
Wind Gust
77.2 km/h
Pressure
1011 mb
Visibility
16 km
UV Index
0.4
(Low)
Precipitation
0 mm
Cloud Cover
100%
Dew Point
4.4°C
Wind Degree
178°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
200.9 μg/m³
NO₂
6.6 μg/m³
O₃
86 μg/m³
SO₂
3.7 μg/m³
PM 2.5
6.6 μg/m³
PM 10
7.3 μg/m³
Weather Alerts 1
Met
· Moderate · Expected
Wind Advisory issued April 13 at 12:55AM EDT until April 13 at 2:00PM EDT by NWS Burlington VT
* WHAT...Southwest winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...Franklin, Northern St. Lawrence, Western Clinton, and Western Essex Counties. * WHEN...From 6 AM this morning to 2 PM EDT this afternoon. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.
Today's Hourly Forecast
24-hour breakdown for Grand Isle, Vermont
12 AM
6°
Moderate or heavy rain shower
1 AM
7°
Patchy rain nearby
2 AM
7°
Patchy rain nearby
3 AM
7°
Patchy rain nearby
4 AM
7°
Patchy rain nearby
5 AM
7°
Patchy rain nearby
6 AM
7°
Patchy rain nearby
7 AM
7°
Patchy rain nearby
8 AM
8°
Overcast
9 AM
9°
Sunny
10 AM
10°
Sunny
11 AM
11°
Sunny
12 PM
12°
Sunny
1 PM
12°
Patchy rain nearby
2 PM
12°
Patchy rain nearby
3 PM
12°
Light drizzle
4 PM
13°
Patchy rain nearby
5 PM
13°
Patchy rain nearby
6 PM
15°
Sunny
7 PM
16°
Cloudy
8 PM
16°
Partly Cloudy
9 PM
16°
Cloudy
10 PM
15°
Overcast
11 PM
14°
Cloudy
3-Day Forecast
Daily overview for Grand Isle, Vermont
Today
Patchy rain nearby
14°
/
6°
🌧️ 89% chance of rain
💧 Avg. humidity: 80%
💨 Max wind: 56.2 km/h
🌧️ Total precip: 2.89 mm
☀️ UV Index: 0.2
🌅 Sunrise: 06:12 AM
🌇 Sunset: 07:36 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Overcast
20°
/
8°
🌧️ 0% chance of rain
💧 Avg. humidity: 87%
💨 Max wind: 37.8 km/h
🌧️ Total precip: 0.05 mm
☀️ UV Index: 0.6
🌅 Sunrise: 06:10 AM
🌇 Sunset: 07:37 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Heavy rain
21°
/
10°
🌧️ 89% chance of rain
💧 Avg. humidity: 93%
💨 Max wind: 20.2 km/h
🌧️ Total precip: 55.86 mm
☀️ UV Index: 0.4
🌅 Sunrise: 06:09 AM
🌇 Sunset: 07:39 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Grand Isle
Plan your trip to Grand Isle, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Grand Isle?
Current conditions in Grand Isle: Overcast, temperature 8°C, humidity 74%.
What is the best time to visit Grand Isle?
The best time to visit Grand Isle is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Grand Isle?
Grand Isle is located at approximately 44.7° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Grand Isle?
The wettest period in Grand Isle is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Grand Isle?
For visits to Grand Isle during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Grand Isle in?
Grand Isle is located in United States, in the state of Vermont.
What are the public holidays in Grand Isle in 2026?
View the 2026 public holidays for Grand Isle on our Holidays page.
What are the GPS coordinates used for the weather forecast in Grand Isle?
The weather forecast for Grand Isle uses coordinates 44.7067, -73.3043.