December 2026 Weather | Decatur, Illinois

Tue 12/1
Cloudy Weather
Day 48°
Night 34°
96
Wed 12/2
Cloudy Weather
Day 39°
Night 32°
1
Thu 12/3
Cloudy Weather
Day 39°
Night 32°
Fri 12/4
Cloudy Weather
Day 48°
Night 34°
0
Sat 12/5
Cloudy Weather
Day 46°
Night 36°
3
Sun 12/6
Cloudy Weather
Day 37°
Night 28°
Mon 12/7
Cloudy Weather
Day 36°
Night 25°
1
Tue 12/8
Sunny Weather
Day 34°
Night 21°
0
Wed 12/9
Sunny Weather
Day 34°
Night 25°
61
Thu 12/10
Cloudy Weather
Day 39°
Night 28°
Fri 12/11
Cloudy Weather
Day 41°
Night 30°
Sat 12/12
Sunny Weather
Day 43°
Night 28°
Sun 12/13
Sunny Weather
Day 39°
Night 28°
4
Mon 12/14
Cloudy Weather
Day 34°
Night 25°
Tue 12/15
Cloudy Weather
Day 37°
Night 27°
1
Wed 12/16
Cloudy Weather
Day 37°
Night 28°
25
Thu 12/17
Cloudy Weather
Day 39°
Night 27°
Fri 12/18
Snowy Weather
Day 36°
Night 21°
Sat 12/19
Snowy Weather
Day 34°
Night 18°
Sun 12/20
Snowy Weather
Day 30°
Night 18°
3
Mon 12/21
Snowy Weather
Day 30°
Night 18°
0
Tue 12/22
Cloudy Weather
Day 28°
Night 23°
2
Wed 12/23
Cloudy Weather
Day 36°
Night 25°
1
Thu 12/24
Snowy Weather
Day 34°
Night 25°
45
Fri 12/25
Snowy Weather
Day 34°
Night 16°
40
Sat 12/26
Cloudy Weather
Day 32°
Night 14°
1
Sun 12/27
Cloudy Weather
Day 28°
Night 14°
92
Mon 12/28
Cloudy Weather
Day 28°
Night 16°
11
Tue 12/29
Cloudy Weather
Day 28°
Night 19°
55
Wed 12/30
Cloudy Weather
Day 28°
Night 21°
Thu 12/31
Snowy Weather
Day 28°
Night 16°