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Thornton, Colorado Weather:
Tuesday, January 20, 2026
Cloudy Weather
Day 61°
Night 34°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 2
Weather Forecast History
Last Year's Weather on This Day (January 20, 2025)
Cloudy Weather

Day

9°

Night

-6°

Wind

6 mph

UV Index

3

Precipitation

13 %