S
M
T
W
T
F
S
29
40°
25°
30
41°
23°
1
39°
22°
2
37°
23°
3
38°
22°
4
36°
24°
5
36°
27°
6
40°
32°
7
45°
36°
8
51°
31°
9
52°
28°
10
41°
25°
11
39°
27°
12
39°
25°
13
40°
25°
14
37°
21°
15
37°
19°
16
35°
20°
17
33°
18°
18
34°
18°
19
34°
17°
20
35°
30°
21
41°
25°
22
43°
21°
23
37°
29°
24
39°
30°
25
47°
27°
26
43°
21°
27
38°
22°
28
39°
17°
29
38°
19°
30
30°
11°
31
45°
12°
1
29°
16°
2
32°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Bartonsville
Bartonsville's December 2026 forecast shows daily high temperatures ranging from 29° to 52°, with overnight lows between 11° and 36°. The average high for December is 39° with an average low of 23°. 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 Bartonsville. See also: January | February | March.