Olathe Weather Forecast

    • 46
    • 64

    Increasing Clouds

    • 47
    • 63

    Mostly Cloudy

    • 46
    • 65

    Partly Sunny

    • 38
    • 68

    Mostly Cloudy

    • 17
    • 44

    Partly Sunny

    • 16
    • 29

    Partly Sunny

    • 25
    • 43

    Mostly Sunny

Today 24 Dec Johnson

Partly sunny. Highs in the lower 60s. Southwest Winds 5 to 10 Mph.

Tonight 24 Dec Johnson

Mostly cloudy. Areas of dense fog. Lows in the mid 40s. West Winds around 5 Mph, becoming north after midnight.

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Olathe Temperature Statistics

December Temperature

Olathe, Johnson County Executive Airport (4.3 miles)

  • Lowest 14 December, 2025

    8.1 °F

  • Average December

    34.2 °F

  • Highest 22 December, 2025

    59 °F

Climate (2020–Present)

Olathe, Johnson County Executive Airport (4.3 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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