Loy Lake Weather Forecast

    • 61
    • 81

    Becoming Sunny

    • 65
    • 83

    Mostly Sunny

    • 63
    • 82

    Mostly Cloudy

    • 59
    • 73

    Chance Rain Showers

    • 60
    • 76

    Slight Chance Thunderstorms

    • 64
    • 80

    Chance Rain Showers

Today 27 Oct Grayson

Partly sunny this Morning, then clearing. A slight chance of Showers this morning. Highs in the lower 80s. South Winds 5 to 10 Mph. Chance of rain less than 20 percent.

Tonight 27 Oct Grayson

Clear. Lows around 60. South 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

    68.1 °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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