Blackhawk Island Airport Weather Forecast

    • 75
    • 92

    Slight Chance Thunderstorms

    • 69
    • 88

    Rain Showers Likely

    • 65
    • 84

    Chance Rain Showers

    • 67
    • 83

    Slight Chance Thunderstorms

    • 69
    • 90

    Slight Chance Thunderstorms

    • 69
    • 89

    Chance Thunderstorms

Today 23 Jul Jefferson

Very warm and humid. Partly sunny until late afternoon then clearing. Scattered light Showers and Thunderstorms in the morning. Highs in the lower 90s. South Winds 10 to 15 Mph. Chance of precipitation 50 percent. Highest heat index Readings 102 to 107 in the late morning and afternoon.

Tonight 23 Jul Jefferson

Mostly clear. Lows in the mid 70s. Southwest Winds 10 to 15 Mph. Highest heat index Readings 95 to 100 in the evening.

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Blackhawk Island Airport Temperature Statistics

July Temperature

Watertown (18.6 miles)

  • Lowest 18 July, 2025

    48.2 °F

  • Average July

    71.7 °F

  • Highest 3 July, 2025

    89.6 °F

Climate (2020–Present)

Watertown (18.6 miles)

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  • Average Low 2020–2025

    36.4 °F

  • Average 2020–2025

    46.1 °F

  • Average High 2020–2025

    55.3 °F
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