Chapman Park Weather Forecast

    • 50
    • 77

    Sunny

    • 56
    • 79

    Increasing Clouds

    • 63
    • 78

    Chance Thunderstorms

    • 61
    • 77

    Rain Showers

    • 57
    • 71

    Rain Showers Likely

    • 59
    • 73

    Partly Sunny

    • 56
    • 74

    Slight Chance Rain Showers

Today 21 Oct Grayson

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

Tonight 21 Oct Grayson

Clear. Lows around 50. Northeast Winds around 5 Mph, becoming south after midnight.

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  • Temperature Real-Time

Chapman Park Temperature Statistics

October Temperature

Sherman/Denison, Grayson County Airport (8.7 miles)

  • Lowest 19 October, 2025

    54.3 °F

  • Average October

    73.3 °F

  • Highest 12 October, 2025

    90 °F

Climate (2020–Present)

Sherman/Denison, Grayson County Airport (8.7 miles)

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  • Average Low 2020–2025

    55.3 °F

  • Average 2020–2025

    64 °F

  • Average High 2020–2025

    76.2 °F
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