Whitesboro Weather Forecast

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    Chance Thunderstorms

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    Chance Thunderstorms

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    Chance Thunderstorms

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    Chance Thunderstorms

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    Chance Thunderstorms

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    Chance Thunderstorms

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    Slight Chance Thunderstorms

Today 27 May Grayson

Partly sunny with a 40 percent chance of Showers and Thunderstorms. Highs in the upper 70s. North Winds around 5 Mph.

Tonight 27 May Grayson

Mostly cloudy. Lows in the mid 60s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Whitesboro Temperature Statistics

May Temperature

Sherman/Denison, Grayson County Airport (14.3 miles)

  • Lowest 2 May, 2026

    44.6 °F

  • Average May

    68.8 °F

  • Highest 14 May, 2026

    87.8 °F

Climate (2021–Present)

Sherman/Denison, Grayson County Airport (14.3 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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