Massacre Memorial State Park Weather Forecast

    • 73
    • 98

    Hot

    • 76
    • 100

    Hot

    • 67
    • 97

    Rain Showers

    • 64
    • 84

    Chance Rain Showers

    • 67
    • 89

    Chance Thunderstorms

    • 65
    • 90

    Chance Thunderstorms

    • 66
    • 89

    Chance Rain Showers

Today 7 Sep Linn

Sunny with a 20 percent chance of Showers. Hot with Highs in the upper 90s. Southeast Winds 5 to 10 Mph. Heat index Values up to 105.

Tonight 7 Sep Linn

Mostly clear. A slight chance of Showers in the evening. Lows in the lower 70s. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 103 early in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Massacre Memorial State Park Temperature Statistics

September Temperature

Olathe, Johnson County Executive Airport (39.8 miles)

  • Lowest 1 September, 2026

    71.7 °F

  • Average September

    86 °F

  • Highest 2 September, 2026

    99.6 °F

Climate (2021–2026)

Olathe, Johnson County Executive Airport (39.8 miles)

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  • Average Low 2021–2026

    48 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    68.1 °F
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