Perch Lake Weather Forecast

    • 3
    • 18

    Mostly Cloudy

    • 12
    • 25

    Snow Showers

    • 21
    • 30

    Chance Snow Showers

    • 19
    • 37

    Chance Rain Showers

    • 20
    • 43

    Rain Showers

    • 10
    • 32

    Chance Snow Showers

Today 14 Dec Jefferson

Partly sunny with a chance of snow Showers in the Morning, then partly sunny in the afternoon. Colder with Highs 15 to 20. Light Winds, becoming northwest 5 to 10 Mph. Chance of snow 50 percent.

Tonight 14 Dec Jefferson

Mostly cloudy. A chance of snow Showers overnight. Cold with Lows Ranging from zero to 5 above across the tug hill to 5 to 10 above along the lake Ontario shore. Northwest Winds 5 to 10 Mph, becoming light. Chance of snow 40 percent.

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Perch Lake Temperature Statistics

December Temperature

Watertown, Watertown International Airport (8.1 miles)

  • Lowest 5 December, 2025

    -6 °F

  • Average December

    22.4 °F

  • Highest 3 December, 2025

    36 °F

Climate (2020–Present)

Watertown, Watertown International Airport (8.1 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    48.6 °F

  • Average High 2020–2025

    57.6 °F
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