Lavon Lake Weather Forecast

    • 53
    • 58

    Cloudy

    • 62
    • 70

    Partly Sunny

    • 61
    • 75

    Mostly Cloudy

    • 61
    • 74

    Partly Sunny

    • 61
    • 76

    Mostly Sunny

    • 57
    • 78

    Partly Sunny

Today 21 Dec Collin

Mostly cloudy. Much cooler with Highs in the upper 50s. Northeast Winds 5 to 10 Mph.

Tonight 21 Dec Collin

Cloudy. Lows in the lower 50s. East Winds around 5 Mph.

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Lavon Lake Temperature Statistics

December Temperature

McKinney - McKinney National Airport (9.3 miles)

  • Lowest 15 December, 2025

    23 °F

  • Average December

    45.7 °F

  • Highest 12 December, 2025

    70 °F

Climate (2020–Present)

McKinney - McKinney National Airport (9.3 miles)

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  • Average Low 2020–2025

    56 °F

  • Average 2020–2025

    66.6 °F

  • Average High 2020–2025

    77.5 °F
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