Mary Island State Park Weather Forecast

    • 60
    • 79

    Becoming Sunny

    • 63
    • 82

    Mostly Sunny

    • 69
    • 82

    Mostly Sunny

    • 70
    • 86

    Partly Sunny

    • 64
    • 86

    Partly Sunny

    • 62
    • 80

    Partly Sunny

Today 11 Jul Jefferson

Becoming mostly sunny. Highs Ranging from the upper 70s on the tug hill to the lower 80s across the lower Elevations. Northeast Winds 5 to 10 Mph, becoming north.

Tonight 11 Jul Jefferson

Clear. Lows Ranging from the upper 50s across the tug hill to the lower 60s along the lake Ontario shore. Northeast Winds 5 to 10 Mph, becoming light.

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Mary Island State Park Temperature Statistics

July Temperature

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

  • Lowest 5 July, 2026

    61.3 °F

  • Average July

    75.7 °F

  • Highest 1 July, 2026

    90 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    55.9 °F
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