Gunter Lake Weather Forecast

    • 78
    • 96

    Slight Chance Thunderstorms

    • 78
    • 95

    Decreasing Clouds

    • 76
    • 98

    Hot

    • 77
    • 100

    Hot

    • 77
    • 101

    Hot

    • 77
    • 101

    Hot

    • 74
    • 97

    Slight Chance Thunderstorms

Today 26 Jul Grayson

Mostly sunny with a 20 percent chance of Showers and Thunderstorms. Highs in the mid 90s. South Winds 5 to 10 Mph. Heat index Values up to 107.

Tonight 26 Jul Grayson

Mostly cloudy this Evening, then becoming partly cloudy. Lows in the upper 70s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gunter Lake Temperature Statistics

July Temperature

Sherman/Denison, Grayson County Airport (19.3 miles)

  • Lowest 1 July, 2025

    69.8 °F

  • Average July

    80.6 °F

  • Highest 23 July, 2025

    98.6 °F

Climate (2020–Present)

Sherman/Denison, Grayson County Airport (19.3 miles)

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  • Average Low 2020–2025

    55.2 °F

  • Average 2020–2025

    63.8 °F

  • Average High 2020–2025

    76.1 °F
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