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: 222 PM CST Wed Jan 21 2026




This Afternoon: Mostly cloudy with a 20 percent chance of showers. Not as cool. Near steady temperature in the lower 70s. Southwest winds around 5 mph.

Tonight: Partly cloudy in the evening, then becoming mostly cloudy. Areas of fog after midnight. Lows in the upper 50s. South winds around 5 mph, becoming north after midnight.

Thursday: Mostly cloudy in the morning, then becoming partly cloudy. Areas of fog in the morning. Highs in the mid 70s. Northeast winds around 5 mph, becoming east in the afternoon.

Thursday Night: Mostly cloudy. Lows in the lower 60s. Southeast winds around 5 mph.

Friday: Mostly cloudy. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Southeast winds 5 to 10 mph. Chance of rain 50 percent.

Friday Night: A chance of showers with a slight chance of thunderstorms in the evening, then showers after midnight. Much cooler with lows in the lower 40s. Chance of rain 80 percent.

Saturday: Rain showers. Much cooler with highs in the mid 40s. Temperature falling into the mid 30s in the afternoon. Chance of rain 90 percent.

Saturday Night: Cloudy. A chance of rain showers and freezing rain in the evening, then freezing rain likely after midnight. Much colder with lows in the lower 20s. Chance of precipitation 70 percent. Wind chill readings as low as 5 above.

Sunday: Mostly cloudy with a slight chance of freezing rain in the morning, then partly cloudy in the afternoon. Cooler with highs in the lower 30s. Wind chill readings as low as 5 above in the morning.

Sunday Night: Partly cloudy. Cold with lows 15 to 20. Wind chill readings as low as 5 above.

Monday And Monday Night: Mostly clear. Highs around 40. Lows around 20. Wind chill readings as low as 5 above.

Tuesday: Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 40s.







Zone Forecast: Lavaca County

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