Glen Lyon Weather Forecast

    • 71
    • 93

    Mostly Sunny

    • 71
    • 91

    Slight Chance Thunderstorms

    • 73
    • 90

    Mostly Sunny

    • 75
    • 89

    Chance Thunderstorms

    • 75
    • 88

    Chance Thunderstorms

    • 71
    • 86

    Rain Showers Likely

    • 69
    • 83

    Chance Thunderstorms

Today 14 May Collin

Sunny. Highs around 90. South Winds around 10 Mph.

Tonight 14 May Collin

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 60s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Glen Lyon Temperature Statistics

May Temperature

Dallas / Addison Airport (3.7 miles)

  • Lowest 2 May, 2026

    53.6 °F

  • Average May

    68.4 °F

  • Highest 5 May, 2026

    89.6 °F

Climate (2021–Present)

Dallas / Addison Airport (3.7 miles)

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  • Average Low 2021–2026

    60.1 °F

  • Average 2021–2026

    67.8 °F

  • Average High 2021–2026

    78.5 °F
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