| NWS Forecast for: Williamson County Issued by: National Weather Service Austin/San Antonio, TX Last Update: 426 PM CDT Tue Jul 28 2026 | |
| Tonight: Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. Highest heat index readings up to 105 early this evening. Wednesday: Partly cloudy in the morning, then becoming sunny. Highs in the upper 90s. South winds 5 to 10 mph. Highest heat index readings up to 107. Wednesday Night: Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. Thursday: Mostly sunny. Highs in the upper 90s. South winds 5 to 10 mph. Highest heat index readings up to 106. Thursday Night: Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph. Friday And Friday Night: Mostly clear. Hot. Highs around 100. Lows in the upper 70s. Highest heat index readings up to 105. Saturday And Saturday Night: Partly cloudy. Hot. Highs around 100. Lows in the upper 70s. Highest heat index readings up to 110. Sunday: Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Highest heat index readings up to 105. Sunday Night: Mostly clear. Lows in the mid 70s. Monday: Sunny. Highs in the upper 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 upper 90s. Highest heat index readings up to 105. | |
| Zone Forecast: Williamson County | |
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