Mary Island State Park Weather Forecast

    • 36
    • 56

    Mostly Sunny

    • 40
    • 51

    Mostly Sunny

    • 50
    • 57

    Partly Sunny

    • 51
    • 60

    Mostly Cloudy

    • 55
    • 63

    Mostly Cloudy

    • 56
    • 64

    Chance Rain Showers

    • 52
    • 63

    Chance Rain Showers

Today 30 Oct Jefferson

Showers likely. Highs in the upper 50s. Chance of rain 60 percent.

Tonight 30 Oct Jefferson

Mostly cloudy Early, then clearing. Lows Ranging from around 30 across the tug hill to the mid 30s along the lake Ontario shore. Northwest Winds 10 to 15 Mph, becoming light.

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Mary Island State Park Temperature Statistics

October Temperature

Fort Drum / Wheeler-Sack U. S. Army Airfield (23.6 miles)

  • Lowest 27 October, 2026

    28.6 °F

  • Average October

    50.4 °F

  • Highest 1 October, 2026

    70.9 °F

Climate (2021–2026)

Fort Drum / Wheeler-Sack U. S. Army Airfield (23.6 miles)

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  • Average Low 2021–2026

    39.2 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    55.9 °F
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