S
M
T
W
T
F
S
29
62°
39°
30
59°
37°
1
58°
37°
2
53°
31°
3
56°
26°
4
63°
26°
5
47°
27°
6
49°
28°
7
51°
29°
8
50°
27°
9
49°
26°
10
47°
24°
11
45°
25°
12
45°
26°
13
47°
27°
14
48°
27°
15
49°
29°
16
51°
31°
17
52°
36°
18
52°
35°
19
53°
34°
20
48°
29°
21
47°
28°
22
47°
33°
23
48°
29°
24
48°
28°
25
46°
25°
26
44°
26°
27
44°
26°
28
45°
27°
29
45°
28°
30
47°
23°
31
47°
21°
1
Hist. Avg.
49°
31°
2
Hist. Avg.
49°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Franklin
Franklin's December 2026 forecast shows daily high temperatures ranging from 44° to 63°, with overnight lows between 21° and 39°. The average high for December is 50° with an average low of 29°. 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 Franklin. See also: January | February | March.