Loy Lake Weather Forecast

    • 57
    • 76

    Becoming Sunny

    • 62
    • 81

    Sunny

    • 66
    • 86

    Mostly Sunny

    • 71
    • 88

    Mostly Cloudy

    • 72
    • 87

    Slight Chance Thunderstorms

    • 72
    • 86

    Slight Chance Thunderstorms

Today 11 May Grayson

Mostly sunny. Highs in the mid 70s. Northeast Winds 5 to 10 Mph.

Tonight 11 May Grayson

Mostly clear. Lows in the upper 50s. Northeast Winds around 5 Mph, becoming southeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Loy Lake Temperature Statistics

May Temperature

Sherman/Denison, Grayson County Airport (4.3 miles)

  • Lowest 2 May, 2026

    44.6 °F

  • Average May

    63.5 °F

  • Highest 9 May, 2026

    81.9 °F

Climate (2021–Present)

Sherman/Denison, Grayson County Airport (4.3 miles)

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  • Average Low 2021–2026

    55.8 °F

  • Average 2021–2026

    64.5 °F

  • Average High 2021–2026

    76.9 °F
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