Grayson County Airport Weather Forecast

    • 66
    • 77

    Rain Showers

    • 67
    • 82

    Slight Chance Thunderstorms

    • 64
    • 79

    Rain Showers Likely

    • 63
    • 77

    Rain Showers Likely

    • 66
    • 83

    Slight Chance Thunderstorms

    • 63
    • 82

    Chance Thunderstorms

Today 12 Apr Grayson

A chance of Thunderstorms. Showers. Highs in the mid 70s. South Winds 15 to 20 Mph. Chance of rain 90 percent.

Tonight 12 Apr Grayson

Mostly cloudy. A 30 percent chance of Showers and Thunderstorms in the evening. Lows in the mid 60s. South Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grayson County Airport Temperature Statistics

April Temperature

Sherman/Denison, Grayson County Airport (0 miles)

  • Lowest 5 April, 2026

    42.6 °F

  • Average April

    64.4 °F

  • Highest 1 April, 2026

    82.4 °F

Climate (2021–Present)

Sherman/Denison, Grayson County Airport (0 miles)

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  • Average Low 2021–2026

    55.7 °F

  • Average 2021–2026

    64.5 °F

  • Average High 2021–2026

    76.8 °F
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