Lavaca Weather Forecast

    • 55
    • 77

    Becoming Sunny

    • 39
    • 74

    Mostly Sunny

    • 43
    • 63

    Chance Rain Showers

    • 31
    • 60

    Slight Chance Rain Showers

    • 27
    • 54

    Mostly Sunny

    • 30
    • 55

    Mostly Sunny

Today 18 Feb Sebastian

Mostly sunny. Highs in the upper 70s. Southwest Winds 5 to 10 Mph.

Tonight 18 Feb Sebastian

Mostly clear. Lows in the upper 50s. South Winds 10 to 15 Mph. Gusts up to 30 Mph after midnight.

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Lavaca Temperature Statistics

February Temperature

Fort Smith Regional Airport (10.6 miles)

  • Lowest 1 February, 2026

    21.7 °F

  • Average February

    51.2 °F

  • Highest 6 February, 2026

    77.6 °F

Climate (2021–Present)

Fort Smith Regional Airport (10.6 miles)

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  • Average Low 2021–2026

    53.9 °F

  • Average 2021–2026

    64.3 °F

  • Average High 2021–2026

    75.7 °F
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