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.

Partly Cloudy

71°F

22°C

Humidity 79%
Wind Speed NE 5 mph
Barometer 30.13 in (1020.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 17 Sep 2:53 pm EDT
Extended Forecast for

Grand Isle VT

  • This Afternoon

    This Afternoon: A 30 percent chance of showers, mainly after 5pm. Mostly cloudy, with a high near 73. Calm wind.

    High: 73 °F

    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 8pm. Patchy dense fog after 3am. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 56. Light north wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Chance
    Showers then
    Patchy Dense
    Fog

  • Friday

    Friday: Sunny, with a high near 67. North wind 6 to 15 mph, with gusts as high as 26 mph.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45. North wind 7 to 9 mph.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 62. North wind 5 to 7 mph becoming calm in the morning.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49. Light and variable wind.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of rain. Mostly cloudy, with a high near 64. South wind 3 to 6 mph.

    High: 64 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 48. Calm wind becoming north around 5 mph after midnight.

    Low: 48 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 61. North wind around 9 mph.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers, mainly after 5pm. Mostly cloudy, with a high near 73. Calm wind.
Tonight
A 30 percent chance of showers, mainly before 8pm. Patchy dense fog after 3am. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 56. Light north wind. New precipitation amounts of less than a tenth of an inch possible.
Friday
Sunny, with a high near 67. North wind 6 to 15 mph, with gusts as high as 26 mph.
Friday Night
Partly cloudy, with a low around 45. North wind 7 to 9 mph.
Saturday
Sunny, with a high near 62. North wind 5 to 7 mph becoming calm in the morning.
Saturday Night
Partly cloudy, with a low around 49. Light and variable wind.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 64. South wind 3 to 6 mph.
Sunday Night
Mostly cloudy, with a low around 48. Calm wind becoming north around 5 mph after midnight.
Monday
Mostly sunny, with a high near 61. North wind around 9 mph.
Monday Night
Mostly cloudy, with a low around 45. North wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 61. North wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 46. North wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 64. Calm wind becoming northeast around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 48. Northeast wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 65. South wind 3 to 5 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Isle VT
 44.72°N 73.33°W (Elev. 154 ft)
Last Update:
2:20 pm EDT Sep 17, 2026
Forecast Valid:
3pm EDT Sep 17, 2026-6pm EDT Sep 24, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation