Merwin Weather Forecast

    • 25
    • 45

    Becoming Sunny

    • 27
    • 52

    Mostly Sunny

    • 29
    • 44

    Mostly Cloudy

    • 23
    • 48

    Partly Sunny

    • 29
    • 45

    Mostly Sunny

    • 33
    • 57

    Mostly Sunny

    • 31
    • 56

    Mostly Sunny

Today 30 Dec Bates

Sunny. Not as cool with Highs in the mid 40s. Southwest Winds 5 to 10 Mph.

Tonight 30 Dec Bates

Mostly clear. Not as cool with Lows in the mid 20s. West Winds around 5 Mph.

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Merwin Temperature Statistics

December Temperature

Olathe, Johnson County Executive Airport (31.7 miles)

  • Lowest 14 December, 2025

    8.1 °F

  • Average December

    38 °F

  • Highest 27 December, 2025

    69.1 °F

Climate (2020–Present)

Olathe, Johnson County Executive Airport (31.7 miles)

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  • Average Low 2020–2025

    47.7 °F

  • Average 2020–2025

    57.4 °F

  • Average High 2020–2025

    67.3 °F
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