Lavaca Weather Forecast

    • 66
    • 80

    Slight Chance Thunderstorms

    • 66
    • 88

    Partly Sunny

    • 71
    • 91

    Mostly Cloudy

    • 71
    • 91

    Rain Showers Likely

    • 68
    • 85

    Rain Showers Likely

    • 65
    • 82

    Rain Showers Likely

Today 27 Sep North and Central Sebastian

Partly sunny with a slight chance of Thunderstorms. Showers early this Morning, then a slight chance of Showers this afternoon. Highs around 80. East Winds 5 to 10 Mph. Chance of rain 90 percent.

Tonight 27 Sep North and Central Sebastian

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the mid 60s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lavaca Temperature Statistics

September Temperature

Fort Smith Regional Airport (10.6 miles)

  • Lowest 25 September, 2026

    61 °F

  • Average September

    87.9 °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

    54.4 °F

  • Average 2021–2026

    65.1 °F

  • Average High 2021–2026

    76.6 °F
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