Frenchman Island Weather Forecast

    • 63
    • 80

    Rain Showers Likely

    • 58
    • 74

    Rain Showers

    • 57
    • 68

    Rain Showers Likely

    • 57
    • 71

    Partly Sunny

    • 62
    • 77

    Chance Rain Showers

    • 64
    • 79

    Rain Showers Likely

Today 22 Aug Oswego

Sunny. Highs Ranging from the mid 70s on the tug hill to the lower 80s across the lower Elevations. Southeast Winds 10 Mph or Less, becoming south.

Tonight 22 Aug Oswego

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly cloudy with Showers likely with a chance of Thunderstorms overnight. Lows Ranging from the mid 50s on the tug hill to around 60 across the lower Elevations. Southeast Winds 10 Mph or less. Chance of rain 70 percent.

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Frenchman Island Temperature Statistics

August Temperature

Syracuse, Syracuse Hancock International Airport (7.5 miles)

  • Lowest 16 August, 2026

    52.6 °F

  • Average August

    73.6 °F

  • Highest 5 August, 2026

    91.7 °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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