Henderson Weather Forecast

    • 37
    • 60

    Slight Chance Rain Showers

    • 37
    • 53

    Sunny

    • 45
    • 61

    Mostly Sunny

    • 46
    • 66

    Partly Sunny

    • 47
    • 66

    Partly Sunny

    • 45
    • 61

    Partly Sunny

    • 47
    • 62

    Partly Sunny

Today 8 Oct Jefferson

Mostly sunny. Near steady Temperatures Ranging from the mid 50s on the tug hill to the upper 50s across the lower Elevations. North Winds 10 to 15 Mph.

Tonight 8 Oct Jefferson

Becoming mainly clear with a widespread frost or freeze after midnight. Lows Ranging from the lower 30s across the tug hill to the upper 30s along the lake Ontario shore. North Winds 5 to 10 Mph.

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Henderson Temperature Statistics

October Temperature

Watertown, Watertown International Airport (12.4 miles)

  • Lowest 2 October, 2025

    32 °F

  • Average October

    60.9 °F

  • Highest 6 October, 2025

    80.1 °F

Climate (2020–Present)

Watertown, Watertown International Airport (12.4 miles)

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  • Average Low 2020–2025

    39 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    57.8 °F
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