Lavaca Weather Forecast

    • 71
    • 102

    Chance Thunderstorms

    • 69
    • 90

    Mostly Sunny

    • 68
    • 92

    Mostly Sunny

    • 70
    • 94

    Sunny

    • 73
    • 97

    Hot

    • 74
    • 98

    Hot

Today 31 Jul North and Central Sebastian

Mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the upper 90s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 111.

Tonight 31 Jul North and Central Sebastian

Partly cloudy. Lows in the mid 70s. East Winds around 5 Mph.

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Lavaca Temperature Statistics

July Temperature

Fort Smith Regional Airport (10.6 miles)

  • Lowest 5 July, 2026

    70.6 °F

  • Average July

    86.1 °F

  • Highest 21 July, 2026

    104.6 °F

Climate (2021–2026)

Fort Smith Regional Airport (10.6 miles)

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  • Average Low 2021–2026

    54.3 °F

  • Average 2021–2026

    64.9 °F

  • Average High 2021–2026

    76.3 °F
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