Williamson County, TX: Current UV Index and Hourly Forecast

As of 2:25 PM CDT on August 8, 2025, all 18 cities in Williamson County, TX in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Liberty Hill, TX with a reading of 10.2.

Over the next 24 hours, the highest UV Index reading in Williamson County, TX is expected to be 10.2 in Liberty Hill between 2:00 PM - 3:00 PM CDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Williamson County, TX as of 2:25 PM CDT, August 8, 2025

Current UV Index in Cities in Williamson County, TX

2:25 PM CDT, August 8, 2025