Grain Valley Weather Forecast

    • 51
    • 78

    Slight Chance Rain Showers

    • 66
    • 78

    Partly Sunny

    • 67
    • 88

    Slight Chance Thunderstorms

    • 68
    • 89

    Chance Thunderstorms

    • 70
    • 90

    Chance Thunderstorms

    • 62
    • 85

    Rain Showers Likely

Today 13 May Jackson

Sunny. Highs in the upper 70s. North Winds 5 to 10 Mph.

Tonight 13 May Jackson

Clear. Lows in the mid 50s. North Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grain Valley Temperature Statistics

May Temperature

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

  • Lowest 1 May, 2026

    39.7 °F

  • Average May

    59.3 °F

  • Highest 9 May, 2026

    83.6 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    48.4 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    67.9 °F
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