Loy Lake Weather Forecast

    • 63
    • 79

    Increasing Clouds

    • 61
    • 82

    Mostly Sunny

    • 65
    • 79

    Partly Sunny

    • 31
    • 73

    Slight Chance Rain Showers

    • 25
    • 42

    Partly Sunny

    • 33
    • 49

    Mostly Sunny

Today 25 Dec Grayson

Mostly sunny. Highs in the upper 70s. Southwest Winds 10 to 15 Mph.

Tonight 25 Dec Grayson

Partly cloudy. Lows in the lower 60s. Southwest Winds around 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Loy Lake Temperature Statistics

December Temperature

Sherman/Denison, Grayson County Airport (4.3 miles)

  • Lowest 15 December, 2025

    22.5 °F

  • Average December

    45 °F

  • Highest 20 December, 2025

    75.2 °F

Climate (2020–Present)

Sherman/Denison, Grayson County Airport (4.3 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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