Decatur, Illinois Weather:
Sunday, November 15, 2026
Rainy Weather
Day 61°
Night 46°
Precipitation 55 %
Wind 13 mph
UV Index (0 - 11+) 1
Weather Forecast History
Last Year's Weather on This Day (November 15, 2025)
Night

Day

73°

Night

37°

Wind

9 mph

Precipitation

5 %