| NWS Forecast for: Williamson County Issued by: National Weather Service Austin/San Antonio, TX Last Update: 407 AM CDT Wed Aug 26 2026 | |
Today: Mostly sunny. Hot with highs around 102. Southwest winds 5 to 10 mph. Tonight: Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 70s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Thursday: Partly cloudy. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Hot with highs around 100. West winds around 5 mph, becoming north in the afternoon. Chance of rain 30 percent. Highest heat index readings up to 107. Thursday Night: Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the mid 70s. South winds around 5 mph. Chance of rain 40 percent. Friday: Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 90s. Southwest winds around 5 mph, becoming east in the afternoon. Highest heat index readings up to 107. Friday Night: Mostly clear. Lows in the mid 70s. Saturday Through Sunday Night: Clear. Highs in the upper 90s. Lows in the mid 70s. Highest heat index readings up to 105. Monday: Mostly sunny. Highs in the upper 90s. Monday Night: Clear. Lows in the mid 70s. Tuesday: Partly cloudy in the morning, then becoming sunny. Highs in the upper 90s. Highest heat index readings up to 105. | |
| Zone Forecast: Williamson County | |
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