Round Rock, Texas Weather:
Thursday, September 3, 2026
Sunny Weather
Day 99°
Night 73°
Precipitation 3 %
Wind 8 mph
UV Index (0 - 11+) 9
Weather Forecast History
Last Year's Weather on This Day (September 3, 2025)
Night

Day

97°

Night

70°

Wind

5 mph

Precipitation

0 %