Mary Island State Park Weather Forecast

    • 60
    • 75

    Patchy Fog

    • 57
    • 73

    Partly Sunny

    • 57
    • 72

    Mostly Sunny

    • 60
    • 75

    Partly Sunny

    • 61
    • 72

    Mostly Cloudy

    • 64
    • 75

    Rain Showers Likely

    • 55
    • 71

    Chance Rain Showers

Today 4 Sep Jefferson

Partly to mostly sunny. Highs Ranging from the lower 70s on the tug hill to the mid 70s across the lower Elevations. Light northwest Winds.

Tonight 4 Sep Jefferson

Partly to mostly cloudy with some patchy fog developing after midnight. Lows Ranging from the lower 50s across the tug hill to the upper 50s along the lake Ontario shore. Light north Winds.

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  • Temperature Forecast NOAA

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Mary Island State Park Temperature Statistics

September Temperature

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

  • Lowest 1 September, 2026

    64.6 °F

  • Average September

    71.4 °F

  • Highest 2 September, 2026

    82.2 °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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