Olathe Weather Forecast

    • 53
    • 74

    Becoming Sunny

    • 54
    • 76

    Sunny

    • 57
    • 76

    Partly Sunny

    • 57
    • 77

    Mostly Cloudy

    • 54
    • 74

    Mostly Cloudy

    • 50
    • 69

    Slight Chance Rain Showers

Today 21 Oct Johnson

Partly sunny in the Morning, then clearing. Highs in the mid 70s. South Winds around 5 Mph.

Tonight 21 Oct Johnson

Mostly clear. Lows in the lower 50s. Southeast Winds around 5 Mph in the Evening, becoming light and variable.

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Olathe Temperature Statistics

October Temperature

Olathe, Johnson County Executive Airport (4.3 miles)

  • Lowest 17 October, 2026

    36 °F

  • Average October

    66.5 °F

  • Highest 12 October, 2026

    89.7 °F

Climate (2021–2026)

Olathe, Johnson County Executive Airport (4.3 miles)

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  • Average Low 2021–2026

    48.1 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    68.2 °F
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