Lewisville Lake Weather Forecast

    • 51
    • 63

    Breezy

    • 50
    • 74

    Mostly Sunny

    • 52
    • 62

    Mostly Cloudy

    • 62
    • 72

    Mostly Sunny

    • 62
    • 77

    Partly Sunny

    • 62
    • 76

    Partly Sunny

Today 19 Dec Denton

Sunny. Highs in the lower 60s. South Winds 5 to 10 Mph, increasing to 10 to 15 Mph this afternoon.

Tonight 19 Dec Denton

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

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Lewisville Lake Temperature Statistics

December Temperature

Dallas / Addison Airport (11.8 miles)

  • Lowest 14 December, 2025

    28.4 °F

  • Average December

    45.4 °F

  • Highest 12 December, 2025

    69.8 °F

Climate (2020–Present)

Dallas / Addison Airport (11.8 miles)

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  • Average Low 2020–2025

    59.5 °F

  • Average 2020–2025

    67.2 °F

  • Average High 2020–2025

    77.8 °F
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