Leavenworth Weather Forecast

    • 36
    • 47

    Increasing Clouds

    • 27
    • 50

    Partly Sunny

    • 35
    • 47

    Partly Sunny

    • 42
    • 56

    Partly Sunny

    • 44
    • 60

    Partly Sunny

    • 52
    • 67

    Partly Sunny

Today 19 Dec Leavenworth

Mostly sunny. Highs in the mid 40s. Northwest Winds around 5 Mph, becoming southwest with Gusts up to 20 Mph this Morning, then becoming south 10 to 15 Mph with Gusts up to 30 Mph this afternoon.

Tonight 19 Dec Leavenworth

Mostly clear in the Evening, then becoming partly cloudy. Not as cool. Near steady temperature in the lower 40s. South Winds 10 to 15 Mph with Gusts up to 30 Mph.

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Leavenworth Temperature Statistics

December Temperature

Kansas City, Kansas City International Airport (9.9 miles)

  • Lowest 14 December, 2025

    3.9 °F

  • Average December

    30.7 °F

  • Highest 17 December, 2025

    55.9 °F

Climate (2020–Present)

Kansas City, Kansas City International Airport (9.9 miles)

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  • Average Low 2020–2025

    46.7 °F

  • Average 2020–2025

    56.9 °F

  • Average High 2020–2025

    67.1 °F
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