Lewisville Weather Forecast

    • 76
    • 97

    Slight Chance Thunderstorms

    • 75
    • 93

    Chance Thunderstorms

    • 78
    • 96

    Hot

    • 72
    • 93

    Hot

    • 71
    • 90

    Mostly Sunny

    • 73
    • 92

    Mostly Sunny

Today 29 Jul Lafayette

Partly cloudy this Morning, then mostly cloudy with a slight chance of Showers and Thunderstorms this afternoon. Hot with Highs in the upper 90s. West Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 106 this afternoon.

Tonight 29 Jul Lafayette

Mostly cloudy in the Evening, then becoming partly cloudy. A slight chance of Showers and Thunderstorms. Humid with Lows in the upper 70s. Light and variable Winds. Chance of rain 20 percent.

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Lewisville Temperature Statistics

July Temperature

Texarkana, Texarkana Regional-Webb Field (24.2 miles)

  • Lowest 7 July, 2026

    72.6 °F

  • Average July

    87.8 °F

  • Highest 21 July, 2026

    106.6 °F

Climate (2021–2026)

Texarkana, Texarkana Regional-Webb Field (24.2 miles)

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  • Average Low 2021–2026

    58.4 °F

  • Average 2021–2026

    68.8 °F

  • Average High 2021–2026

    79.4 °F
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