Marcellus Weather Forecast

    • 54
    • 77

    Rain Showers Likely

    • 54
    • 71

    Rain Showers Likely

    • 55
    • 74

    Chance Rain Showers

    • 61
    • 79

    Partly Sunny

    • 63
    • 83

    Chance Rain Showers

    • 59
    • 80

    Rain Showers Likely

Today 23 Aug Onondaga

Mostly cloudy with Showers with a slight chance of Thunderstorms in the Morning, then partly sunny with scattered Showers with isolated Thunderstorms in the afternoon. Highs in the upper 70s. South Winds around 10 Mph, becoming west in the afternoon. Chance of rain 80 percent.

Tonight 23 Aug Onondaga

Showers with a slight chance of Thunderstorms. Lows in the mid 60s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 90 percent.

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Marcellus Temperature Statistics

August Temperature

Syracuse, Syracuse Hancock International Airport (14.3 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 (14.3 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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