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Round Rock, Texas Weather:
Thursday, December 18, 2025
Sunny Weather
Day 79°
Night 41°
Precipitation 7 %
Wind 12 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (December 18, 2024)
Sunny with a Chance of Thunderstorms

Day

66°

Night

37°

Wind

12 mph

UV Index

3

Precipitation

40 %