River Forest Park Weather Forecast

    • 58
    • 80

    Increasing Clouds

    • 42
    • 68

    Mostly Sunny

    • 49
    • 70

    Mostly Sunny

    • 61
    • 77

    Partly Sunny

    • 61
    • 80

    Chance Rain Showers

    • 59
    • 78

    Chance Rain Showers

    • 57
    • 77

    Chance Rain Showers

Today 18 Sep Northern Cayuga

Sunny. Highs Ranging from the lower 70s along the lake Ontario shore to the upper 70s inland. Light northwest Winds.

Tonight 18 Sep Northern Cayuga

Mainly clear Early, then becoming mostly cloudy with some patchy fog developing after midnight. Lows in the upper 50s. Light Winds.

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  • Temperature Real-Time

River Forest Park Temperature Statistics

September Temperature

Fulton, Oswego County Airport (21.1 miles)

  • Lowest 9 September, 2025

    44.1 °F

  • Average September

    61.2 °F

  • Highest 3 September, 2025

    80.1 °F

Climate (2020–Present)

Fulton, Oswego County Airport (21.1 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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