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Thornton, Colorado Weather:
Wednesday, January 21, 2026
Cloudy Weather
Day 54°
Night 25°
Precipitation 10 %
Wind 6 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (January 21, 2025)
Cloudy Weather

Day

43°

Night

19°

Wind

9 mph

UV Index

3

Precipitation

2 %