Loy Lake Weather Forecast

    • 67
    • 81

    Slight Chance Thunderstorms

    • 60
    • 76

    Rain Showers

    • 49
    • 69

    Chance Rain Showers

    • 50
    • 65

    Sunny

    • 55
    • 77

    Sunny

    • 60
    • 81

    Mostly Sunny

Today 9 Mar Grayson

Mostly cloudy with a 20 percent chance of Showers and Thunderstorms in the Morning, then partly sunny in the afternoon. Warmer. More humid with Highs around 80. South Winds 10 to 15 Mph.

Tonight 9 Mar Grayson

Partly cloudy in the Evening, then becoming mostly cloudy. Not as cool with Lows in the mid 60s. South Winds around 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Loy Lake Temperature Statistics

March Temperature

Sherman/Denison, Grayson County Airport (4.3 miles)

  • Lowest 2 March, 2026

    47.1 °F

  • Average March

    67.6 °F

  • Highest 3 March, 2026

    82.4 °F

Climate (2021–Present)

Sherman/Denison, Grayson County Airport (4.3 miles)

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  • Average Low 2021–2026

    55.7 °F

  • Average 2021–2026

    64.4 °F

  • Average High 2021–2026

    76.7 °F
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