Ellisburg Weather Forecast

    • 54
    • 82

    Rain Showers

    • 44
    • 62

    Chance Rain Showers

    • 44
    • 58

    Partly Sunny

    • 49
    • 67

    Rain Showers Likely

    • 50
    • 64

    Chance Rain Showers

    • 51
    • 65

    Chance Rain Showers

Today 19 May Jefferson

Partly sunny with a chance of Showers late this Morning, then partly sunny this afternoon. Warm with Highs Ranging from the mid 70s along the lake Ontario shore to the lower 80s inland. Southwest Winds 10 to 15 Mph. Chance of rain 40 percent.

Tonight 19 May Jefferson

Showers with a chance of Thunderstorms. Mild with Lows in the mid 50s. Southwest Winds 10 to 15 Mph. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ellisburg Temperature Statistics

May Temperature

Watertown, Watertown International Airport (18.6 miles)

  • Lowest 1 May, 2026

    29.6 °F

  • Average May

    49.6 °F

  • Highest 16 May, 2026

    76.6 °F

Climate (2021–Present)

Watertown, Watertown International Airport (18.6 miles)

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  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    57.6 °F
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