Frenchman Island Weather Forecast

    • 40
    • 56

    Increasing Clouds

    • 38
    • 54

    Partly Sunny

    • 39
    • 48

    Chance Rain Showers

    • 39
    • 55

    Partly Sunny

    • 44
    • 62

    Chance Rain Showers

    • 45
    • 59

    Rain Showers Likely

Today 23 Apr Oswego

Sunny. Highs Ranging from the lower 50s along the lake Ontario shore to the upper 50s inland. Light Winds, becoming northwest 5 to 10 Mph.

Tonight 23 Apr Oswego

Mostly cloudy. Lows Ranging from the lower 30s on the tug hill to the upper 30s across the lower Elevations. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Frenchman Island Temperature Statistics

April Temperature

Syracuse, Syracuse Hancock International Airport (7.5 miles)

  • Lowest 8 April, 2026

    19.7 °F

  • Average April

    52.2 °F

  • Highest 16 April, 2026

    83.6 °F

Climate (2021–Present)

Syracuse, Syracuse Hancock International Airport (7.5 miles)

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  • Average Low 2021–2026

    42.7 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    60.7 °F
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