Frenchman Island Weather Forecast

    • 63
    • 82

    Increasing Clouds

    • 63
    • 81

    Slight Chance Thunderstorms

    • 64
    • 81

    Rain Showers

    • 62
    • 75

    Rain Showers

    • 61
    • 73

    Rain Showers Likely

    • 61
    • 75

    Chance Rain Showers

Today 25 Jul Oswego

Sunny. Highs Ranging from the upper 70s on the tug hill to the mid 80s across the lower Elevations. Light south Winds.

Tonight 25 Jul Oswego

Partly to mostly cloudy. Lows Ranging from around 60 across the tug hill to the mid 60s along the lake Ontario shore. Light southeast Winds.

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Frenchman Island Temperature Statistics

July Temperature

Syracuse, Syracuse Hancock International Airport (7.5 miles)

  • Lowest 20 July, 2026

    53.7 °F

  • Average July

    75.1 °F

  • Highest 14 July, 2026

    98.7 °F

Climate (2021–2026)

Syracuse, Syracuse Hancock International Airport (7.5 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    60.6 °F
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