| NWS Forecast for: Lavaca County Issued by: National Weather Service Austin/San Antonio, TX Last Update: 358 PM CDT Fri Jul 3 2026 | |
| Tonight: Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph. Independence Day: Partly cloudy in the morning, then becoming mostly sunny. Humid with highs in the mid 90s. South winds 5 to 10 mph. Highest heat index readings up to 107. Saturday Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the mid 70s. South winds 5 to 10 mph. Sunday: Partly cloudy. Highs in the mid 90s. South winds 5 to 10 mph. Highest heat index readings up to 106. Sunday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. South winds 5 to 10 mph. Monday: Partly cloudy. Highs in the mid 90s. Highest heat index readings up to 105. Monday Night: Mostly clear. Lows in the mid 70s. Tuesday: Partly cloudy in the morning, then clearing. Highs in the mid 90s. Highest heat index readings up to 105. Tuesday Night Through Wednesday Night: Mostly clear. Lows in the mid 70s. Highs in the upper 90s. Highest heat index readings up to 105. Thursday: Partly cloudy in the morning, then clearing. Highs in the upper 90s. Highest heat index readings up to 105. Thursday Night: Mostly clear. Lows in the upper 70s. Friday: Partly cloudy in the morning, then clearing. Highs in the mid 90s. Highest heat index readings up to 105. | |
| Zone Forecast: Lavaca County | |
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