Henderson Bay Weather Forecast

    • 61
    • 71

    Mostly Sunny

    • 67
    • 74

    Partly Sunny

    • 63
    • 78

    Rain Showers

    • 60
    • 70

    Chance Rain Showers

    • 61
    • 71

    Mostly Sunny

    • 64
    • 75

    Partly Sunny

Today 19 Jul Jefferson

Mostly sunny. Patchy smoke in the morning. Highs Ranging from the upper 60s on the tug hill to the mid 70s across the lower Elevations. Northwest Winds 5 to 10 Mph.

Tonight 19 Jul Jefferson

Mainly clear. Lows Ranging from the mid 50s across the tug hill to around 60 along the lake Ontario shore. West Winds 5 to 10 Mph, becoming light.

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Henderson Bay Temperature Statistics

July Temperature

Watertown, Watertown International Airport (9.9 miles)

  • Lowest 12 July, 2026

    49.6 °F

  • Average July

    72.6 °F

  • Highest 1 July, 2026

    91.7 °F

Climate (2021–2026)

Watertown, Watertown International Airport (9.9 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    57.6 °F
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