Round Rock, Texas Weather:
Friday, September 18, 2026
Sunny Weather
Day 95°
Night 72°
Precipitation 9 %
Wind 7 mph
UV Index (0 - 11+) 8
Weather Forecast History
Last Year's Weather on This Day (September 18, 2025)
Cloudy Night

Day

93°

Night

73°

Wind

6 mph

Precipitation

21 %