Port Byron Weather Forecast

    • 57
    • 80

    Chance Rain Showers

    • 43
    • 68

    Partly Sunny

    • 49
    • 70

    Mostly Sunny

    • 60
    • 78

    Partly Sunny

    • 62
    • 82

    Slight Chance Rain Showers

    • 61
    • 83

    Chance Rain Showers

Today 18 Sep Northern Cayuga

Sunny. Patchy fog this morning. Highs Ranging from the mid 70s along the lake Ontario shore to around 80 inland. Light Winds.

Tonight 18 Sep Northern Cayuga

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Sprinkles overnight. Lows in the upper 50s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Port Byron Temperature Statistics

September Temperature

Fulton, Oswego County Airport (24.9 miles)

  • Lowest 9 September, 2025

    44.1 °F

  • Average September

    61.1 °F

  • Highest 3 September, 2025

    80.1 °F

Climate (2020–Present)

Fulton, Oswego County Airport (24.9 miles)

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  • Average Low 2020–2025

    41.1 °F

  • Average 2020–2025

    49.7 °F

  • Average High 2020–2025

    58.4 °F
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