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Thornton, Colorado Weather:
Saturday, January 17, 2026
Cloudy Weather
Day 54°
Night 27°
Precipitation 20 %
Wind 9 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (January 17, 2025)
Snowy Weather

Day

50°

Night

10°

Wind

12 mph

UV Index

3

Precipitation

55 %