Lenexa Weather Forecast

    • 38
    • 46

    Mostly Sunny

    • 29
    • 50

    Partly Sunny

    • 36
    • 47

    Partly Sunny

    • 45
    • 55

    Partly Sunny

    • 48
    • 64

    Partly Sunny

    • 52
    • 67

    Partly Sunny

Today 19 Dec Johnson

Sunny. Highs in the mid 40s. Southwest Winds 10 to 15 Mph. Gusts up to 30 Mph in the afternoon.

Tonight 19 Dec Johnson

Clear and much cooler. Near steady temperature in the mid 20s. Northwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Lenexa Temperature Statistics

December Temperature

Olathe, Johnson County Executive Airport (6.8 miles)

  • Lowest 14 December, 2025

    8.1 °F

  • Average December

    31.2 °F

  • Highest 9 December, 2025

    55 °F

Climate (2020–Present)

Olathe, Johnson County Executive Airport (6.8 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    57.3 °F

  • Average High 2020–2025

    67.2 °F
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