Williamson County, TX: Current UV Index and Hourly Forecast

As of 9:46 AM CDT on June 25, 2025, all 18 cities in Williamson County, TX in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Georgetown, TX with a reading of 2.1.

Over the next 24 hours, the highest UV Index reading in Williamson County, TX is expected to be 11.4 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 9:46 AM CDT, June 25, 2025

Current UV Index in Cities in Williamson County, TX

9:46 AM CDT, June 25, 2025