Olathe Weather Forecast

    • 55
    • 80

    Mostly Sunny

    • 59
    • 80

    Mostly Sunny

    • 63
    • 84

    Mostly Sunny

    • 67
    • 88

    Mostly Sunny

    • 60
    • 85

    Mostly Sunny

    • 59
    • 85

    Slight Chance Thunderstorms

Today 11 May Johnson

Sunny. Highs around 80. East Winds 5 to 10 Mph.

Tonight 11 May Johnson

Partly cloudy in the Evening, then clearing. Lows in the mid 50s. East Winds 5 to 10 Mph.

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Olathe Temperature Statistics

May Temperature

Olathe, Johnson County Executive Airport (4.3 miles)

  • Lowest 4 May, 2025

    42.7 °F

  • Average May

    62.2 °F

  • Highest 5 May, 2025

    76.6 °F

Climate (2020–Present)

Olathe, Johnson County Executive Airport (4.3 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    57 °F

  • Average High 2020–2025

    67 °F
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