S
M
T
W
T
F
S
29
42°
29°
30
42°
30°
1
42°
32°
2
40°
33°
3
42°
34°
4
41°
33°
5
44°
30°
6
41°
29°
7
40°
36°
8
45°
27°
9
45°
29°
10
41°
35°
11
43°
37°
12
47°
37°
13
48°
36°
14
48°
34°
15
46°
36°
16
45°
38°
17
48°
37°
18
49°
35°
19
48°
32°
20
44°
26°
21
40°
27°
22
38°
28°
23
37°
27°
24
38°
28°
25
39°
27°
26
38°
25°
27
39°
29°
28
39°
28°
29
42°
25°
30
40°
27°
31
36°
30°
1
40°
31°
2
40°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Big Bottom
Big Bottom's December 2026 forecast shows daily high temperatures ranging from 36° to 49°, with overnight lows between 25° and 38°. The average high for December is 42° with an average low of 31°. 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 Big Bottom. See also: January | February | March.