Grayson County Airport Weather Forecast

    • 35
    • 49

    Sunny

    • 42
    • 62

    Sunny

    • 37
    • 61

    Mostly Sunny

    • 43
    • 63

    Mostly Sunny

    • 36
    • 63

    Partly Sunny

    • 39
    • 54

    Mostly Cloudy

    • 43
    • 54

    Mostly Cloudy

Today 8 Dec Grayson

Sunny. Highs around 50. Light and variable Winds.

Tonight 8 Dec Grayson

Mostly clear. Lows in the mid 30s. South Winds around 5 Mph.

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  • Temperature Real-Time

Grayson County Airport Temperature Statistics

December Temperature

Sherman/Denison, Grayson County Airport (0 miles)

  • Lowest 2 December, 2025

    23.7 °F

  • Average December

    38.3 °F

  • Highest 3 December, 2025

    59 °F

Climate (2020–Present)

Sherman/Denison, Grayson County Airport (0 miles)

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  • Average Low 2020–2025

    55.4 °F

  • Average 2020–2025

    64 °F

  • Average High 2020–2025

    76.3 °F
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