Olathe Weather Forecast

    • 67
    • 88

    Chance Rain Showers

    • 68
    • 84

    Slight Chance Thunderstorms

    • 70
    • 87

    Partly Sunny

    • 70
    • 88

    Partly Sunny

    • 68
    • 88

    Slight Chance Thunderstorms

    • 70
    • 88

    Slight Chance Thunderstorms

Today 22 Aug Johnson

Mostly sunny. A chance of Showers with a slight chance of Thunderstorms in the morning. Highs in the upper 80s. Northeast Winds around 5 Mph. Chance of rain 50 percent.

Tonight 22 Aug Johnson

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 60s. Northeast Winds around 5 Mph.

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Olathe Temperature Statistics

August Temperature

Olathe, Johnson County Executive Airport (4.3 miles)

  • Lowest 1 August, 2026

    66.7 °F

  • Average August

    80.1 °F

  • Highest 13 August, 2026

    96.7 °F

Climate (2021–2026)

Olathe, Johnson County Executive Airport (4.3 miles)

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  • Average Low 2021–2026

    48 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    68 °F
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