S
M
T
W
T
F
S
29
75°
57°
30
74°
53°
1
73°
44°
2
60°
43°
3
62°
44°
4
65°
54°
5
70°
48°
6
62°
44°
7
60°
44°
8
59°
42°
9
58°
41°
10
59°
41°
11
60°
43°
12
62°
45°
13
67°
51°
14
63°
43°
15
63°
42°
16
61°
47°
17
65°
42°
18
60°
39°
19
57°
38°
20
57°
41°
21
59°
46°
22
64°
40°
23
65°
39°
24
57°
39°
25
60°
40°
26
58°
40°
27
60°
47°
28
62°
40°
29
60°
39°
30
58°
39°
31
59°
37°
1
57°
38°
2
58°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Bloomington
Bloomington's December 2026 forecast shows daily high temperatures ranging from 57° to 75°, with overnight lows between 37° and 57°. The average high for December is 62° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Bloomington. See also: January | February | March.