Port Lavaca Weather Forecast
Today 14 Oct Coastal Calhoun
Partly cloudy. A slight chance of Showers and Thunderstorms this morning. Highs in the upper 80s. Southeast Winds 10 to 15 Mph, increasing to 15 to 20 Mph this afternoon. Chance of rain 20 percent.
Tonight 14 Oct Coastal Calhoun
Partly cloudy in the Evening, then becoming mostly clear. Lows in the mid 70s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.
Port Lavaca Temperature Statistics
October Temperature
Palacios Municipal Airport (23 miles)
Lowest 9 October, 2026
64.9 °FAverage October
80.4 °FHighest 1 October, 2026
92.6 °F
Climate (2021–2026)
Palacios Municipal Airport (23 miles)
Average Low 2021–2026
65.7 °FAverage 2021–2026
73.4 °FAverage High 2021–2026
81.2 °F