Loy Lake Weather Forecast

    • 66
    • 83

    Slight Chance Thunderstorms

    • 67
    • 83

    Rain Showers

    • 67
    • 79

    Rain Showers

    • 68
    • 81

    Chance Thunderstorms

    • 70
    • 85

    Chance Thunderstorms

    • 70
    • 86

    Chance Thunderstorms

Today 25 May Grayson

Partly sunny. A 20 percent chance of Showers and Thunderstorms this afternoon. Highs in the lower 80s. East Winds around 5 Mph.

Tonight 25 May Grayson

Partly cloudy in the Evening, then clearing. Lows in the mid 60s. East Winds around 5 Mph.

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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

    68.4 °F

  • Highest 14 May, 2026

    87.8 °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

    64.6 °F

  • Average High 2021–2026

    77 °F
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