Whitesboro Weather Forecast

    • 63
    • 78

    Decreasing Clouds

    • 60
    • 76

    Partly Sunny

    • 61
    • 77

    Partly Sunny

    • 59
    • 82

    Mostly Sunny

    • 47
    • 79

    Mostly Cloudy

    • 34
    • 57

    Mostly Cloudy

Today 23 Dec Grayson

Mostly cloudy this Morning, then becoming partly sunny. Patchy fog this morning. Highs in the upper 70s. South Winds 10 to 15 Mph.

Tonight 23 Dec Grayson

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 60s. South Winds 5 to 10 Mph.

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  • Temperature Real-Time

Whitesboro Temperature Statistics

December Temperature

Sherman/Denison, Grayson County Airport (14.3 miles)

  • Lowest 15 December, 2025

    22.5 °F

  • Average December

    43.8 °F

  • Highest 20 December, 2025

    75.2 °F

Climate (2020–Present)

Sherman/Denison, Grayson County Airport (14.3 miles)

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  • Average Low 2020–2025

    55.4 °F

  • Average 2020–2025

    64.1 °F

  • Average High 2020–2025

    76.3 °F
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