Lavaca Weather Forecast

    • 70
    • 95

    Partly Sunny

    • 71
    • 95

    Increasing Clouds

    • 70
    • 94

    Partly Sunny

    • 70
    • 95

    Mostly Sunny

    • 69
    • 92

    Chance Rain Showers

    • 66
    • 88

    Chance Rain Showers

    • 66
    • 89

    Mostly Sunny

Today 13 Sep Sebastian

Mostly sunny. Highs in the mid 90s. Southwest Winds around 5 Mph.

Tonight 13 Sep Sebastian

Mostly cloudy this Evening, then becoming partly cloudy. Lows around 70. Southeast Winds around 5 Mph.

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Lavaca Temperature Statistics

September Temperature

Fort Smith Regional Airport (10.6 miles)

  • Lowest 7 September, 2025

    55.9 °F

  • Average September

    73.7 °F

  • Highest 11 September, 2025

    93.9 °F

Climate (2020–Present)

Fort Smith Regional Airport (10.6 miles)

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  • Average Low 2020–2025

    53.5 °F

  • Average 2020–2025

    63.8 °F

  • Average High 2020–2025

    75.1 °F
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