Lavaca Weather Forecast

    • 70
    • 98

    Slight Chance Thunderstorms

    • 67
    • 96

    Sunny

    • 70
    • 98

    Hot

    • 72
    • 100

    Hot

    • 74
    • 99

    Hot

    • 74
    • 99

    Hot

Today 27 Aug North and Central Sebastian

Mostly sunny. Patchy fog this morning. A slight chance of Showers and Thunderstorms this afternoon. Highs in the upper 90s. Northeast Winds around 5 Mph. Chance of rain 20 percent.

Tonight 27 Aug North and Central Sebastian

Partly cloudy in the Evening, then clearing. Lows around 70. Northeast Winds around 5 Mph.

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Lavaca Temperature Statistics

August Temperature

Fort Smith Regional Airport (10.6 miles)

  • Lowest 2 August, 2026

    70.6 °F

  • Average August

    88.6 °F

  • Highest 18 August, 2026

    109.7 °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

    65 °F

  • Average High 2021–2026

    76.5 °F
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