Watertown Weather Forecast

    • 45
    • 62

    Chance Rain Showers

    • 41
    • 54

    Rain Showers

    • 38
    • 52

    Rain Showers

    • 35
    • 51

    Chance Rain Showers

    • 34
    • 51

    Slight Chance Rain Showers

    • 33
    • 52

    Mostly Cloudy

Today 21 Oct Jefferson

Mostly sunny Early, then mostly cloudy with a chance of Showers late. Highs Ranging from the upper 50s on the tug hill to the lower 60s across the lower Elevations. South Winds 10 to 15 Mph. Chance of rain 30 percent.

Tonight 21 Oct Jefferson

Mostly cloudy with a chance of Showers Early, then partly cloudy through the early overnight. Partly cloudy with a chance of Showers late. Lows in the lower 40s. South Winds 5 to 10 Mph, becoming light. Chance of rain 40 percent.

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Watertown Temperature Statistics

October Temperature

Watertown, Watertown International Airport (5.6 miles)

  • Lowest 17 October, 2025

    27 °F

  • Average October

    56.6 °F

  • Highest 6 October, 2025

    80.1 °F

Climate (2020–Present)

Watertown, Watertown International Airport (5.6 miles)

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  • Average Low 2020–2025

    39 °F

  • Average 2020–2025

    48.8 °F

  • Average High 2020–2025

    57.8 °F
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