Lavaca Weather Forecast

    • 76
    • 104

    Isolated Thunderstorms

    • 76
    • 103

    Hot

    • 72
    • 96

    Chance Thunderstorms

    • 72
    • 97

    Chance Thunderstorms

    • 74
    • 100

    Hot

    • 73
    • 98

    Slight Chance Thunderstorms

    • 72
    • 97

    Slight Chance Thunderstorms

Today 8 Sep North and Central Sebastian

Sunny with a slight chance of Showers and Thunderstorms. Hot with Highs around 104. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 8 Sep North and Central Sebastian

Mostly clear. Lows in the upper 70s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lavaca Temperature Statistics

September Temperature

Fort Smith Regional Airport (10.6 miles)

  • Lowest 2 September, 2026

    75.7 °F

  • Average September

    90.8 °F

  • Highest 4 September, 2026

    106.6 °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

    65 °F

  • Average High 2021–2026

    76.5 °F
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