Harrisonville Weather Forecast

    • 76
    • 93

    Isolated Thunderstorms

    • 76
    • 97

    Hot

    • 76
    • 97

    Hot

    • 75
    • 95

    Slight Chance Thunderstorms

    • 75
    • 95

    Slight Chance Thunderstorms

    • 75
    • 97

    Partly Sunny

    • 75
    • 97

    Mostly Sunny

Today 22 Jul Monroe

Mostly sunny with isolated Showers and Thunderstorms. Near steady temperature in the lower 90s. Southeast Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 110.

Tonight 22 Jul Monroe

Partly cloudy. Isolated Showers and Thunderstorms this evening. Lows in the mid 70s. Southeast Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 106 early this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harrisonville Temperature Statistics

July Temperature

St. Louis Downtown Airport (22.4 miles)

  • Lowest 2 July, 2025

    63.6 °F

  • Average July

    81.6 °F

  • Highest 11 July, 2025

    97.6 °F

Climate (2020–Present)

St. Louis Downtown Airport (22.4 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    57.7 °F

  • Average High 2020–2025

    68.3 °F
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