Lake Olathe Weather Forecast

    • 56
    • 78

    Mostly Sunny

    • 59
    • 80

    Chance Rain Showers

    • 60
    • 79

    Slight Chance Thunderstorms

    • 64
    • 87

    Partly Sunny

    • 67
    • 89

    Partly Sunny

    • 68
    • 92

    Partly Sunny

    • 67
    • 90

    Partly Sunny

Today 7 Sep Johnson

Sunny. Highs in the upper 70s. Southeast Winds around 5 Mph.

Tonight 7 Sep Johnson

Mostly clear. Lows in the mid 50s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Olathe Temperature Statistics

September Temperature

Olathe, New Century Aircenter (3.1 miles)

  • Lowest 4 September, 2025

    51.1 °F

  • Average September

    66.5 °F

  • Highest 3 September, 2025

    84.9 °F

Climate (2020–Present)

Olathe, New Century Aircenter (3.1 miles)

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  • Average Low 2020–2025

    46.6 °F

  • Average 2020–2025

    57 °F

  • Average High 2020–2025

    67.8 °F
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