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: 403 PM CDT Mon Jun 8 2026
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Tonight: Partly cloudy. Lows in the mid 70s. Southeast winds 5 to 10 mph.

Tuesday: Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Humid with highs around 90. Southeast winds 5 to 10 mph. Chance of rain 20 percent.

Tuesday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Southeast winds 5 to 10 mph.

Wednesday: Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. Southeast winds 10 to 15 mph.

Wednesday Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the mid 70s. Southeast winds 10 to 15 mph.

Thursday And Thursday Night: Mostly clear. Highs in the lower 90s. Lows in the mid 70s. Highest heat index readings up to 105.

Friday: Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s.

Friday Night: Mostly clear. Lows in the mid 70s.

Saturday: Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s.

Saturday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s.

Sunday: Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent. Highest heat index readings up to 105.

Sunday Night: Partly cloudy. A slight chance of showers after midnight. Lows in the mid 70s.

Monday: Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent.







Zone Forecast: Lavaca County

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