Loy Lake Weather Forecast

    • 39
    • 68

    Increasing Clouds

    • 35
    • 54

    Mostly Sunny

    • 34
    • 54

    Sunny

    • 40
    • 60

    Mostly Sunny

    • 44
    • 65

    Partly Sunny

    • 33
    • 58

    Mostly Sunny

Today 9 Jan Grayson

Mostly sunny. Cooler with Highs in the upper 60s. Northeast Winds around 5 Mph.

Tonight 9 Jan Grayson

Partly cloudy in the Evening, then clearing. Lows in the upper 30s. North Winds 5 to 10 Mph, increasing to 10 to 15 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Loy Lake Temperature Statistics

January Temperature

Sherman/Denison, Grayson County Airport (4.3 miles)

  • Lowest 4 January, 2026

    32.5 °F

  • Average January

    53.2 °F

  • Highest 6 January, 2026

    73.4 °F

Climate (2021–Present)

Sherman/Denison, Grayson County Airport (4.3 miles)

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  • Average Low 2021–2026

    55.5 °F

  • Average 2021–2026

    64.1 °F

  • Average High 2021–2026

    76.4 °F
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