Lewisville Lake Weather Forecast

    • 76
    • 85

    Slight Chance Thunderstorms

    • 77
    • 90

    Slight Chance Thunderstorms

    • 76
    • 90

    Chance Thunderstorms

    • 77
    • 92

    Slight Chance Thunderstorms

    • 78
    • 95

    Mostly Sunny

    • 78
    • 96

    Mostly Sunny

    • 79
    • 95

    Mostly Sunny

Today 6 Jul Denton

Partly sunny with a 20 percent chance of Showers and Thunderstorms. Highs in the mid 80s. South Winds 5 to 10 Mph.

Tonight 6 Jul Denton

Mostly clear. Lows in the mid 70s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewisville Lake Temperature Statistics

July Temperature

Dallas / Addison Airport (11.8 miles)

  • Lowest 1 July, 2025

    73.4 °F

  • Average July

    81.5 °F

  • Highest 1 July, 2025

    91.4 °F

Climate (2020–Present)

Dallas / Addison Airport (11.8 miles)

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  • Average Low 2020–2025

    59.2 °F

  • Average 2020–2025

    66.9 °F

  • Average High 2020–2025

    77.5 °F
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