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Joliet, Illinois Weather:
Wednesday, January 21, 2026
Cold Day
Day 19°
Night 5°
Precipitation 20 %
Wind 6 mph
UV Index (0 - 11+) 1
Weather Forecast History
Last Year's Weather on This Day (January 21, 2025)
Cold Day

Day

5°

Night

0°

Wind

12 mph

UV Index

2

Precipitation

0 %