Grand Isle Weather Forecast

    • 28
    • 34

    Breezy

    • 13
    • 40

    Breezy

    • -5
    • 18

    Chance Snow Showers

    • 2
    • 18

    Partly Sunny

    • 22
    • 32

    Mostly Cloudy

    • 19
    • 39

    Chance Snow

Today 27 Feb Grand Isle

Partly sunny. Highs in the mid 30s. South Winds 10 to 15 Mph.

Tonight 27 Feb Grand Isle

Partly cloudy. Lows around 3 above. Light and variable Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Isle Temperature Statistics

February Temperature

Plattsburgh International Airport (9.3 miles)

  • Lowest 2 February, 2026

    -9.9 °F

  • Average February

    17.1 °F

  • Highest 17 February, 2026

    37 °F

Climate (2021–Present)

Plattsburgh International Airport (9.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    47.4 °F

  • Average High 2021–2026

    55.9 °F
Get WillyWeather+ to remove ads