Graham Field Weather Forecast

    • 78
    • 100

    Hot

    • 78
    • 100

    Slight Chance Thunderstorms

    • 77
    • 100

    Hot

    • 76
    • 98

    Slight Chance Thunderstorms

    • 76
    • 98

    Hot

    • 76
    • 99

    Hot

Today 7 Sep Grayson

Sunny, hot with Highs around 100. Southeast Winds 5 to 10 Mph. Heat index Values up to 105.

Tonight 7 Sep Grayson

Mostly clear. Lows in the upper 70s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Graham Field Temperature Statistics

September Temperature

Sherman/Denison, Grayson County Airport (9.3 miles)

  • Lowest 2 September, 2026

    74.7 °F

  • Average September

    85.3 °F

  • Highest 1 September, 2026

    98.6 °F

Climate (2021–2026)

Sherman/Denison, Grayson County Airport (9.3 miles)

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  • Average Low 2021–2026

    56 °F

  • Average 2021–2026

    64.8 °F

  • Average High 2021–2026

    77.2 °F
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