Johnson County Government Plaza Weather Forecast

    • 40
    • 51

    Rain

    • 31
    • 48

    Chance Rain

    • 41
    • 55

    Partly Sunny

    • 34
    • 61

    Mostly Cloudy

    • 29
    • 50

    Partly Sunny

    • 31
    • 47

    Mostly Cloudy

Today 30 Jan Johnson

Cloudy. Patchy fog this morning. A slight chance of rain and drizzle this Morning, then rain likely this afternoon. Highs around 50. East Winds around 5 Mph. Chance of rain 70 percent.

Tonight 30 Jan Johnson

Showers with a slight chance of Thunderstorms in the Evening, then rain after midnight. Lows around 40. North Winds 5 to 10 Mph, becoming west 10 to 15 Mph after midnight. Chance of rain near 100 percent.

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Johnson County Government Plaza Temperature Statistics

January Temperature

Olathe, Johnson County Executive Airport (5.6 miles)

  • Lowest 21 January, 2025

    -6.2 °F

  • Average January

    24.7 °F

  • Highest 17 January, 2025

    51.7 °F

Climate (2020–Present)

Olathe, Johnson County Executive Airport (5.6 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    56.9 °F

  • Average High 2020–2025

    66.8 °F
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