Lavaca County, TX

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From the Forecaster

Today

Created by the NWS Austin/San Antonio WFO

Another hot day is expected. Expect most highs in the 90s with a few spots along the Rio Grande nearing 100.

An infographic detailing a 7-day weather forecast starting Thursday, September 17, 2026, for multiple Texas cities, highlighting very hot conditions with low rain chances. The image features three side-by-side data tables: "Highs," showing daily maximum temperatures mostly ranging from 90 to 100 degrees Fahrenheit; "Max Heat Index," indicating peak feels-like temperatures climbing up to 110 degrees; and "Rain Chances," listing low precipitation probabilities that generally remain between 0% and 45% throughout the week.
Austin/San Antonio Area Forecast Discussion

Seven-day Weather Risk Overview

The graphic shows the daily risk summary for 7 days. Daily risk is based on highest risk factor for that day.
risk level
out of 10
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table legend
No risk
Low risk
High risk
See the detailed risk analysis

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