Loy Lake Weather Forecast

    • 53
    • 76

    Becoming Sunny

    • 54
    • 77

    Sunny

    • 57
    • 79

    Mostly Sunny

    • 58
    • 80

    Partly Sunny

    • 61
    • 80

    Partly Sunny

    • 59
    • 78

    Mostly Cloudy

Today 20 Oct Grayson

Sunny. Highs in the mid 70s. Southeast Winds around 5 Mph.

Tonight 20 Oct Grayson

Mostly clear. Lows in the lower 50s. Southeast Winds around 5 Mph.

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  • Temperature Real-Time

Loy Lake Temperature Statistics

October Temperature

Sherman/Denison, Grayson County Airport (4.3 miles)

  • Lowest 18 October, 2026

    44.2 °F

  • Average October

    69.6 °F

  • Highest 13 October, 2026

    91.4 °F

Climate (2021–2026)

Sherman/Denison, Grayson County Airport (4.3 miles)

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  • Average Low 2021–2026

    56.2 °F

  • Average 2021–2026

    64.9 °F

  • Average High 2021–2026

    77.3 °F
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