Grain Valley Weather Forecast

    • 11
    • 17

    Mostly Sunny

    • 6
    • 26

    Mostly Sunny

    • 7
    • 32

    Partly Sunny

    • 4
    • 24

    Mostly Cloudy

    • -1
    • 19

    Partly Sunny

    • 12
    • 24

    Partly Sunny

Today 26 Jan Jackson

Sunny, cold with Highs around 18. West Winds 5 to 10 Mph, becoming southwest 10 to 15 Mph with Gusts up to 25 Mph in the afternoon. Wind chill Values as low as 20 below in the morning.

Tonight 26 Jan Jackson

Mostly clear and not as cold. Near steady temperature around 15. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Wind chill Values as low as 1 below.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grain Valley Temperature Statistics

January Temperature

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

  • Lowest 23 January, 2026

    1 °F

  • Average January

    35.1 °F

  • Highest 7 January, 2026

    67.6 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    48.1 °F

  • Average 2021–2026

    57.7 °F

  • Average High 2021–2026

    67.3 °F
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