Lavaca Weather Forecast

    • 73
    • 97

    Slight Chance Thunderstorms

    • 73
    • 99

    Hot

    • 74
    • 100

    Hot

    • 74
    • 100

    Hot

    • 74
    • 100

    Hot

    • 74
    • 99

    Chance Rain Showers

Today 12 Sep North and Central Sebastian

Sunny with a slight chance of Showers and Thunderstorms. Highs in the upper 90s. South Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 105.

Tonight 12 Sep North and Central Sebastian

Mostly clear. Near steady temperature in the mid 70s. East Winds around 5 Mph.

Graph Plots Open in Graphs

  • 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

    91.4 °F

  • Highest 4 September, 2026

    106.6 °F

Climate (2021–2026)

Fort Smith Regional Airport (10.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    54.4 °F

  • Average 2021–2026

    65.1 °F

  • Average High 2021–2026

    76.5 °F
Get WillyWeather+ to remove ads