Lewisville Lake Weather Forecast

    • 34
    • 60

    Mostly Sunny

    • 31
    • 49

    Partly Sunny

    • 46
    • 51

    Partly Sunny

    • 41
    • 57

    Mostly Cloudy

    • 46
    • 57

    Partly Sunny

    • 46
    • 66

    Mostly Cloudy

Today 18 Jan Denton

Sunny. Not as cool with Highs around 60. Southwest Winds 5 to 10 Mph.

Tonight 18 Jan Denton

Mostly clear. Not as cool with Lows in the lower 30s. North Winds around 5 Mph.

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  • Temperature Real-Time

Lewisville Lake Temperature Statistics

January Temperature

Dallas / Addison Airport (11.8 miles)

  • Lowest 15 January, 2026

    33.8 °F

  • Average January

    54.9 °F

  • Highest 7 January, 2026

    78.8 °F

Climate (2021–Present)

Dallas / Addison Airport (11.8 miles)

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  • Average Low 2021–2026

    59.7 °F

  • Average 2021–2026

    67.4 °F

  • Average High 2021–2026

    78 °F
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