Glen Lyon Weather Forecast

    • 47
    • 68

    Mostly Sunny

    • 55
    • 77

    Mostly Sunny

    • 60
    • 88

    Sunny

    • 61
    • 91

    Sunny

    • 65
    • 94

    Sunny

    • 64
    • 93

    Sunny

Today 17 Mar Collin

Mostly sunny. Not as cool with Highs in the lower 60s. South Winds 10 to 15 Mph.

Tonight 17 Mar Collin

Mostly clear. Not as cool with Lows in the mid 40s. South Winds 10 to 15 Mph.

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Glen Lyon Temperature Statistics

March Temperature

Dallas / Addison Airport (3.7 miles)

  • Lowest 12 March, 2026

    41 °F

  • Average March

    66.8 °F

  • Highest 3 March, 2026

    84.2 °F

Climate (2021–Present)

Dallas / Addison Airport (3.7 miles)

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  • Average Low 2021–2026

    59.9 °F

  • Average 2021–2026

    67.6 °F

  • Average High 2021–2026

    78.3 °F
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