Marcellus Weather Forecast

    • 57
    • 78

    Mostly Sunny

    • 67
    • 82

    Rain Showers Likely

    • 60
    • 78

    Chance Rain Showers

    • 60
    • 78

    Partly Sunny

    • 58
    • 78

    Rain Showers Likely

    • 54
    • 74

    Mostly Sunny

    • 57
    • 75

    Partly Sunny

Today 15 Aug Onondaga

Partly sunny. Highs around 80. North Winds around 5 Mph.

Tonight 15 Aug Onondaga

Mostly clear. Lows in the upper 50s. Northeast Winds around 5 Mph, becoming southeast after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Marcellus Temperature Statistics

August Temperature

Syracuse, Syracuse Hancock International Airport (14.3 miles)

  • Lowest 4 August, 2026

    58.6 °F

  • Average August

    74.6 °F

  • Highest 5 August, 2026

    91.7 °F

Climate (2021–2026)

Syracuse, Syracuse Hancock International Airport (14.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    60.6 °F
Get WillyWeather+ to remove ads