Watertown International Airport Weather Forecast

    • -1
    • 17

    Snow Showers

    • -20
    • 13

    Partly Sunny

    • -14
    • 5

    Cold

    • -8
    • 11

    Mostly Cloudy

    • 1
    • 15

    Partly Sunny

    • 9
    • 24

    Mostly Cloudy

Today 28 Jan Jefferson

Mostly sunny Early, then partly sunny with a chance of snow Showers late this morning. Lake effect snow this afternoon. Additional accumulation 3 to 5 Inches in the most persistent Snows. Cold with Highs 15 to 20. Light Winds, becoming southwest 5 to 10 Mph. Chance of snow near 100 percent.

Tonight 28 Jan Jefferson

Lake effect snow in the Evening, then a chance of snow Showers overnight. Additional accumulation 2 to 4 Inches in the most persistent Snows. Lows zero to 5 above. Light south Winds. Chance of snow near 100 percent.

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Watertown International Airport Temperature Statistics

January Temperature

Watertown, Watertown International Airport (0 miles)

  • Lowest 24 January, 2026

    -11 °F

  • Average January

    20.9 °F

  • Highest 9 January, 2026

    51.7 °F

Climate (2021–Present)

Watertown, Watertown International Airport (0 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    48.5 °F

  • Average High 2021–2026

    57.6 °F
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