Glen Lyon Weather Forecast

    • 77
    • 91

    Decreasing Clouds

    • 78
    • 97

    Mostly Sunny

    • 80
    • 98

    Hot

    • 81
    • 100

    Hot

    • 82
    • 102

    Hot

    • 82
    • 102

    Hot

Today 17 Jul Collin

Mostly sunny. Humid with Highs in the lower 90s. South Winds 5 to 10 Mph.

Tonight 17 Jul Collin

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 70s. South Winds 5 to 10 Mph.

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Glen Lyon Temperature Statistics

July Temperature

Dallas / Addison Airport (3.7 miles)

  • Lowest 14 July, 2026

    68 °F

  • Average July

    86.1 °F

  • Highest 8 July, 2026

    102.2 °F

Climate (2021–2026)

Dallas / Addison Airport (3.7 miles)

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  • Average Low 2021–2026

    60.2 °F

  • Average 2021–2026

    68 °F

  • Average High 2021–2026

    78.6 °F
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