Lewisville Weather Forecast

    • 76
    • 96

    Increasing Clouds

    • 75
    • 96

    Partly Sunny

    • 74
    • 95

    Partly Sunny

    • 75
    • 94

    Partly Sunny

    • 77
    • 96

    Partly Sunny

    • 77
    • 96

    Slight Chance Thunderstorms

Today 22 Sep Denton

Sunny. Highs in the mid 90s. Northeast Winds 5 to 10 Mph.

Tonight 22 Sep Denton

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 70s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewisville Temperature Statistics

September Temperature

Dallas/Fort Worth International Airport (9.9 miles)

  • Lowest 19 September, 2026

    75.9 °F

  • Average September

    90.1 °F

  • Highest 7 September, 2026

    102.7 °F

Climate (2021–2026)

Dallas/Fort Worth International Airport (9.9 miles)

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  • Average Low 2021–2026

    59.8 °F

  • Average 2021–2026

    69.8 °F

  • Average High 2021–2026

    80.2 °F
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