Preston Weather Forecast

    • 74
    • 95

    Becoming Sunny

    • 74
    • 92

    Sunny

    • 76
    • 94

    Sunny

    • 79
    • 96

    Mostly Sunny

    • 80
    • 96

    Mostly Sunny

    • 80
    • 95

    Mostly Sunny

Today 1 Aug Grayson

Sunny. Highs in the mid 90s. North Winds 5 to 10 Mph.

Tonight 1 Aug Grayson

Mostly clear. Lows in the lower 70s. North Winds 5 to 10 Mph.

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Preston Temperature Statistics

August Temperature

Sherman/Denison, Grayson County Airport (11.2 miles)

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  • Average August

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Climate (2021–2026)

Sherman/Denison, Grayson County Airport (11.2 miles)

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  • Average Low 2021–2026

    55.9 °F

  • Average 2021–2026

    64.7 °F

  • Average High 2021–2026

    77 °F
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