Henderson Weather Forecast

    • 67
    • 82

    Rain Showers Likely

    • 60
    • 82

    Mostly Sunny

    • 63
    • 82

    Sunny

    • 67
    • 84

    Partly Sunny

    • 61
    • 81

    Chance Rain Showers

    • 57
    • 75

    Partly Sunny

Today 13 Aug Jefferson

Showers likely with a chance of Thunderstorms. Humid with Highs Ranging from around 80 on the tug hill to the mid 80s across the lower Elevations. Light Winds, becoming southwest 5 to 10 Mph. Chance of rain 70 percent.

Tonight 13 Aug Jefferson

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then a chance of Showers overnight. Muggy with Lows in the mid 60s. Light Winds. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Henderson Temperature Statistics

August Temperature

Watertown, Watertown International Airport (12.4 miles)

  • Lowest 2 August, 2025

    43.6 °F

  • Average August

    71.1 °F

  • Highest 6 August, 2025

    89.7 °F

Climate (2020–Present)

Watertown, Watertown International Airport (12.4 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    57.7 °F
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