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Naperville, Illinois Weather:
Saturday, March 21, 2026
Snowy Weather
Day 46°
Night 30°
Precipitation 81 %
Wind 15 mph
Weather Forecast History
Last Year's Weather on This Day (March 21, 2025)
Cloudy Weather

Day

61°

Night

30°

Wind

19 mph

UV Index

5

Precipitation

3 %