Grain Valley Weather Forecast

    • 64
    • 95

    Severe Tstms

    • 59
    • 80

    Partly Sunny

    • 65
    • 86

    Partly Sunny

    • 70
    • 86

    Rain Showers Likely

    • 65
    • 85

    Rain Showers Likely

    • 61
    • 79

    Slight Chance Thunderstorms

Today 17 Jun Jackson

Sunny. A chance of Showers and Thunderstorms in the afternoon. Some Thunderstorms may be severe. Breezy, warmer with Highs in the mid 90s. Southwest Winds 15 to 25 Mph with Gusts up to 50 Mph. Chance of rain 50 percent. Heat index Values up to 102 in the afternoon.

Tonight 17 Jun Jackson

Mostly clear. Near steady temperature around 70. South Winds 15 to 20 Mph with Gusts up to 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grain Valley Temperature Statistics

June Temperature

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

  • Lowest 12 June, 2026

    61.6 °F

  • Average June

    76 °F

  • Highest 9 June, 2026

    89.7 °F

Climate (2021–2026)

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

    58.1 °F

  • Average High 2021–2026

    67.9 °F
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