Grain Valley Weather Forecast

    • 70
    • 91

    Sunny

    • 72
    • 91

    Increasing Clouds

    • 70
    • 89

    Chance Thunderstorms

    • 70
    • 88

    Chance Thunderstorms

    • 70
    • 88

    Slight Chance Thunderstorms

    • 69
    • 88

    Chance Thunderstorms

    • 68
    • 88

    Chance Rain Showers

Today 3 Jul Jackson

Sunny. Highs in the lower 90s. South Winds 5 to 10 Mph.

Tonight 3 Jul Jackson

Clear. Lows in the lower 70s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grain Valley Temperature Statistics

July Temperature

Lee's Summit, Lee's Summit Municipal Airport (9.9 miles)

  • Lowest 1 July, 2025

    66 °F

  • Average July

    77.3 °F

  • Highest 1 July, 2025

    87.1 °F

Climate (2020–Present)

Lee's Summit, Lee's Summit Municipal Airport (9.9 miles)

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  • Average Low 2020–2025

    48 °F

  • Average 2020–2025

    57.4 °F

  • Average High 2020–2025

    67.1 °F
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