Loy Lake Weather Forecast

    • 74
    • 99

    Hot

    • 78
    • 100

    Hot

    • 78
    • 100

    Hot

    • 77
    • 99

    Hot

    • 74
    • 96

    Slight Chance Thunderstorms

    • 76
    • 95

    Partly Sunny

    • 76
    • 97

    Hot

Today 3 Aug Grayson

Sunny, hot with Highs in the upper 90s. Southeast Winds around 5 Mph.

Tonight 3 Aug Grayson

Clear. Lows in the lower 70s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Loy Lake Temperature Statistics

August Temperature

Sherman/Denison, Grayson County Airport (4.3 miles)

  • Lowest 1 August, 2026

    75.9 °F

  • Average August

    84.3 °F

  • Highest 1 August, 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

    64.7 °F

  • Average High 2021–2026

    77.1 °F
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