Marcellus Weather Forecast

    • 50
    • 72

    Becoming Sunny

    • 52
    • 73

    Mostly Sunny

    • 61
    • 76

    Mostly Cloudy

    • 64
    • 81

    Rain Showers

    • 52
    • 72

    Slight Chance Rain Showers

    • 51
    • 68

    Mostly Sunny

Today 6 Sep Onondaga

Patchy fog in the morning. Partly sunny. Highs in the mid 70s. North Winds 5 to 10 Mph.

Tonight 6 Sep Onondaga

Partly cloudy. Patchy fog. Lows in the mid 50s. Northwest Winds around 5 Mph.

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Marcellus Temperature Statistics

September Temperature

Syracuse, Syracuse Hancock International Airport (14.3 miles)

  • Lowest 2 September, 2026

    64.7 °F

  • Average September

    73.9 °F

  • Highest 2 September, 2026

    85.6 °F

Climate (2021–2026)

Syracuse, Syracuse Hancock International Airport (14.3 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    60.6 °F
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