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Boulder, Colorado Weather:
Sunday, January 4, 2026
Rainy Weather
Day 48°
Night 36°
Precipitation 55 %
Wind 6 mph
UV Index (0 - 11+) 2
Weather Forecast History
Last Year's Weather on This Day (January 4, 2025)
Cloudy Weather

Day

30°

Night

18°

Wind

4 mph

UV Index

1

Precipitation

25 %