Knight Island State Park Weather Forecast

    • 31
    • 44

    Decreasing Clouds

    • 40
    • 50

    Breezy

    • 49
    • 58

    Rain Likely

    • 42
    • 64

    Rain

    • 28
    • 46

    Partly Sunny

    • 38
    • 49

    Partly Sunny

    • 38
    • 57

    Mostly Cloudy

Today 13 Mar Grand Isle

Partly sunny. Highs in the mid 40s. South Winds 15 to 20 Mph.

Tonight 13 Mar Grand Isle

Partly cloudy until Midnight, then clearing. Lows in the lower 30s. South Winds 10 to 15 Mph.

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  • Temperature Real-Time

Knight Island State Park Temperature Statistics

March Temperature

Franklin County State Airport (11.8 miles)

  • Lowest 3 March, 2025

    -3.1 °F

  • Average March

    29.5 °F

  • Highest 11 March, 2025

    61.9 °F

Climate (2020–Present)

Franklin County State Airport (11.8 miles)

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  • Average Low 2020–2025

    37.2 °F

  • Average 2020–2025

    46.3 °F

  • Average High 2020–2025

    55.2 °F
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