Loy Lake Weather Forecast

    • 73
    • 92

    Slight Chance Thunderstorms

    • 74
    • 93

    Slight Chance Thunderstorms

    • 79
    • 96

    Mostly Sunny

    • 79
    • 96

    Mostly Sunny

    • 79
    • 96

    Slight Chance Thunderstorms

    • 77
    • 94

    Slight Chance Thunderstorms

Today 6 Jul Grayson

Sunny. A 20 percent chance of Showers and Thunderstorms this afternoon. Highs in the mid 90s. East Winds around 5 Mph.

Tonight 6 Jul Grayson

Mostly clear. Lows in the lower 70s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Loy Lake Temperature Statistics

July Temperature

Sherman/Denison, Grayson County Airport (4.3 miles)

  • Lowest 2 July, 2026

    74.5 °F

  • Average July

    83.2 °F

  • Highest 4 July, 2026

    96.8 °F

Climate (2021–2026)

Sherman/Denison, Grayson County Airport (4.3 miles)

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  • Average Low 2021–2026

    55.9 °F

  • Average 2021–2026

    64.6 °F

  • Average High 2021–2026

    77 °F
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