Robert Allerton Park Weather Forecast

    • 63
    • 86

    Partly Sunny

    • 54
    • 74

    Partly Sunny

    • 57
    • 76

    Partly Sunny

    • 59
    • 77

    Partly Sunny

    • 64
    • 83

    Mostly Sunny

    • 68
    • 89

    Mostly Sunny

Today 21 Jul Piatt

Mostly sunny. A chance of Showers with a slight chance of Thunderstorms this morning. Highs in the mid 80s. West Winds 15 to 20 Mph. Chance of rain 30 percent.

Tonight 21 Jul Piatt

Mostly clear. Lows in the lower 60s. Northwest Winds 15 to 20 Mph, becoming north around 10 Mph after midnight.

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Robert Allerton Park Temperature Statistics

July Temperature

Decatur Airport (16.2 miles)

  • Lowest 13 July, 2026

    62.7 °F

  • Average July

    78.8 °F

  • Highest 2 July, 2026

    93.7 °F

Climate (2021–2026)

Decatur Airport (16.2 miles)

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  • Average Low 2021–2026

    45.4 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65.6 °F
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