Marcellus Weather Forecast

    • 63
    • 81

    Chance Thunderstorms

    • 63
    • 82

    Mostly Cloudy

    • 59
    • 77

    Rain Showers Likely

    • 61
    • 79

    Chance Rain Showers

    • 65
    • 85

    Slight Chance Thunderstorms

    • 66
    • 88

    Chance Thunderstorms

    • 62
    • 84

    Chance Thunderstorms

Today 4 Jul Onondaga

Showers and Thunderstorms likely. Highs in the lower 80s. Northwest Winds around 5 Mph. Chance of rain 70 percent.

Tonight 4 Jul Onondaga

Partly cloudy with a chance of Showers and Thunderstorms this Evening, then mostly cloudy after midnight. Patchy fog after midnight. Lows in the lower 60s. Northwest Winds around 5 Mph this Evening, becoming light and variable. Chance of rain 50 percent.

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  • Temperature Real-Time

Marcellus Temperature Statistics

July Temperature

Syracuse, Syracuse Hancock International Airport (14.3 miles)

  • Lowest 2 July, 2026

    71.1 °F

  • Average July

    84.3 °F

  • Highest 1 July, 2026

    96.7 °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

    51.5 °F

  • Average High 2021–2026

    60.6 °F
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