Mc Donnell Airport Weather Forecast

    • 59
    • 77

    Mostly Cloudy

    • 52
    • 75

    Partly Sunny

    • 51
    • 75

    Partly Sunny

    • 56
    • 75

    Mostly Cloudy

    • 59
    • 76

    Chance Rain Showers

    • 62
    • 81

    Chance Rain Showers

Today 21 Sep Cass

Mostly cloudy. A slight chance of Showers in the morning. Patchy fog in the morning. Highs in the upper 70s. North Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 21 Sep Cass

Mostly cloudy. Lows around 60. North Winds around 5 Mph.

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Mc Donnell Airport Temperature Statistics

September Temperature

Olathe, Johnson County Executive Airport (29.8 miles)

  • Lowest 11 September, 2026

    62.1 °F

  • Average September

    81.9 °F

  • Highest 5 September, 2026

    100.7 °F

Climate (2021–2026)

Olathe, Johnson County Executive Airport (29.8 miles)

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  • Average Low 2021–2026

    48.1 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    68.2 °F
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