7-Day Zone Forecast for Lavaca County (Text-Only)
NWS Forecast for: Lavaca County
Issued by: National Weather Service Austin/San Antonio, TX
Last Update: 707 PM CDT Wed May 20 2026


Rest Of Tonight: Mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 70s. East winds 5 to 10 mph. Chance of rain 50 percent.

Thursday: Cloudy in the morning, then becoming partly cloudy. A chance of thunderstorms. Showers likely, mainly in the morning. Highs in the lower 80s. East winds 5 to 10 mph, becoming southeast in the afternoon. Chance of rain 70 percent.

Thursday Night: Mostly cloudy with a chance of showers and thunderstorms. Lows around 70. Southeast winds around 5 mph. Chance of rain 50 percent.

Friday: Mostly cloudy in the morning, then becoming partly cloudy. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Humid with highs in the mid 80s. Temperature falling into the lower 80s in the afternoon. South winds around 5 mph. Chance of rain 70 percent.

Friday Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 50 percent.

Saturday: Showers likely with a chance of thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. Highs in the mid 80s. Temperature falling into the upper 70s in the afternoon. Chance of rain 90 percent.

Saturday Night And Sunday: Showers with a chance of thunderstorms. Lows around 70. Highs in the lower 80s. Chance of rain 90 percent.

Sunday Night And Memorial Day: Partly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Highs in the mid 80s. Chance of rain 50 percent.

Monday Night: Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers and thunderstorms. Lows around 70.

Tuesday: Partly cloudy with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent.

Tuesday Night: Partly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 70s. Chance of rain 30 percent.

Wednesday: Mostly cloudy with a chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Highs in the mid 80s. Chance of rain 70 percent.







Zone Forecast: Lavaca County

Visit your local NWS office at: https://www.weather.gov/ewx