Lavaca Weather Forecast

    • 41
    • 66

    Mostly Sunny

    • 44
    • 57

    Increasing Clouds

    • 54
    • 67

    Mostly Cloudy

    • 59
    • 75

    Mostly Cloudy

    • 58
    • 76

    Mostly Cloudy

    • 60
    • 78

    Mostly Sunny

    • 54
    • 78

    Mostly Sunny

Today 20 Dec Sebastian

Sunny. Not as cool with Highs in the upper 60s. Southwest Winds 5 to 10 Mph with Gusts up to 30 Mph.

Tonight 20 Dec Sebastian

Mostly clear. Lows in the lower 40s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lavaca Temperature Statistics

December Temperature

Fort Smith Regional Airport (10.6 miles)

  • Lowest 15 December, 2025

    21.9 °F

  • Average December

    42.9 °F

  • Highest 12 December, 2025

    69.1 °F

Climate (2020–Present)

Fort Smith Regional Airport (10.6 miles)

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  • Average Low 2020–2025

    53.8 °F

  • Average 2020–2025

    64.1 °F

  • Average High 2020–2025

    75.3 °F
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