Grain Valley Weather Forecast

    • 62
    • 77

    Rain Showers

    • 45
    • 80

    Rain Showers Likely

    • 45
    • 65

    Partly Sunny

    • 44
    • 67

    Partly Sunny

    • 45
    • 68

    Mostly Cloudy

    • 41
    • 62

    Partly Sunny

Today 26 Apr Jackson

Partly sunny in the Morning, then becoming mostly cloudy. A chance of Showers and Thunderstorms. Highs in the mid 70s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 26 Apr Jackson

Mostly cloudy with a chance of Showers and Thunderstorms. Not as cool with Lows in the upper 50s. East Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grain Valley Temperature Statistics

April Temperature

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

  • Lowest 5 April, 2026

    37.7 °F

  • Average April

    60.7 °F

  • Highest 14 April, 2026

    84.7 °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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