Merwin Weather Forecast

    • 70
    • 93

    Chance Thunderstorms

    • 67
    • 84

    Slight Chance Thunderstorms

    • 66
    • 87

    Mostly Sunny

    • 68
    • 90

    Slight Chance Thunderstorms

    • 68
    • 90

    Partly Sunny

    • 70
    • 89

    Slight Chance Thunderstorms

    • 71
    • 94

    Partly Sunny

Today 18 Aug Bates

Mostly sunny with a 20 percent chance of Showers. Highs in the lower 90s. Southeast Winds 5 to 10 Mph.

Tonight 18 Aug Bates

Partly cloudy this Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Lows around 70. East Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Merwin Temperature Statistics

August Temperature

Olathe, Johnson County Executive Airport (31.7 miles)

  • Lowest 1 August, 2026

    66.7 °F

  • Average August

    80.8 °F

  • Highest 13 August, 2026

    96.7 °F

Climate (2021–2026)

Olathe, Johnson County Executive Airport (31.7 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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