Frenchman Island Weather Forecast

    • 40
    • 58

    Sunny

    • 41
    • 61

    Mostly Sunny

    • 41
    • 61

    Mostly Sunny

    • 41
    • 60

    Mostly Sunny

    • 44
    • 60

    Partly Sunny

    • 42
    • 57

    Partly Sunny

Today 18 Oct Oswego

Some patchy fog in the Morning, otherwise sunny. Highs Ranging from the lower 50s on the tug hill to the upper 50s across the lower Elevations. Light southwest Winds.

Tonight 18 Oct Oswego

Clear. Lows Ranging from the lower 30s across the tug hill to the upper 30s along the lake Ontario shore. Light Winds.

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Frenchman Island Temperature Statistics

October Temperature

Syracuse, Syracuse Hancock International Airport (7.5 miles)

  • Lowest 7 October, 2026

    37.7 °F

  • Average October

    57 °F

  • Highest 2 October, 2026

    75.7 °F

Climate (2021–2026)

Syracuse, Syracuse Hancock International Airport (7.5 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    60.5 °F
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