National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Plattsburgh International Airport (KPBG)

Lat: 44.65°NLon: 73.47°WElev: 236ft.

Fair

81°F

27°C

Humidity 35%
Wind Speed NW 13 G 25 mph
Barometer 29.86 in (1010.8 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 20 May 12:53 pm EDT
Extended Forecast for

Grand Isle VT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 79. Northwest wind around 16 mph.

    High: 79 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. North wind 11 to 13 mph.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 60. North wind 8 to 11 mph.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42. Northwest wind around 6 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 68. Light and variable wind.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 68. Light and variable wind.

    High: 68 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 48. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers before 2pm. Mostly cloudy, with a high near 65. South wind 10 to 14 mph.

    High: 65 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 79. Northwest wind around 16 mph.
Tonight
Mostly cloudy, with a low around 43. North wind 11 to 13 mph.
Thursday
Sunny, with a high near 60. North wind 8 to 11 mph.
Thursday Night
Mostly clear, with a low around 42. Northwest wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 68. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 48. Calm wind.
Saturday
A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 68. Light and variable wind.
Saturday Night
A chance of showers before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 48. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.
Sunday
A 40 percent chance of showers before 2pm. Mostly cloudy, with a high near 65. South wind 10 to 14 mph.
Sunday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 49. South wind 11 to 14 mph.
Memorial Day
A 50 percent chance of showers. Mostly cloudy, with a high near 68. South wind 8 to 10 mph.
Monday Night
Mostly cloudy, with a low around 52. South wind 3 to 5 mph.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 73. Light and variable wind becoming west around 6 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Isle VT
 44.72°N 73.3°W (Elev. 125 ft)
Last Update:
6:47 am EDT May 20, 2026
Forecast Valid:
1pm EDT May 20, 2026-6pm EDT May 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation