Loy Lake Weather Forecast

    • 54
    • 73

    Chance Rain Showers

    • 57
    • 63

    Chance Rain Showers

    • 64
    • 74

    Slight Chance Thunderstorms

    • 67
    • 77

    Slight Chance Thunderstorms

    • 60
    • 83

    Slight Chance Thunderstorms

    • 61
    • 81

    Chance Rain Showers

Today 20 Apr Grayson

Partly sunny. Highs in the lower 70s. South Winds 5 to 10 Mph.

Tonight 20 Apr Grayson

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the lower 50s. South Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Loy Lake Temperature Statistics

April Temperature

Sherman/Denison, Grayson County Airport (4.3 miles)

  • Lowest 5 April, 2026

    42.6 °F

  • Average April

    67.4 °F

  • Highest 13 April, 2026

    84.2 °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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