S
M
T
W
T
F
S
29
65°
42°
30
67°
33°
1
53°
28°
2
51°
27°
3
53°
34°
4
58°
38°
5
53°
34°
6
51°
29°
7
51°
26°
8
49°
25°
9
49°
25°
10
50°
28°
11
53°
28°
12
57°
34°
13
54°
35°
14
53°
28°
15
51°
27°
16
48°
30°
17
49°
27°
18
48°
24°
19
47°
23°
20
48°
25°
21
50°
27°
22
54°
27°
23
49°
24°
24
46°
23°
25
46°
25°
26
47°
29°
27
49°
27°
28
50°
26°
29
49°
25°
30
48°
26°
31
49°
23°
1
47°
24°
2
48°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Jermyn
Jermyn's December 2026 forecast shows daily high temperatures ranging from 46° to 67°, with overnight lows between 23° and 42°. The average high for December is 51° with an average low of 28°. 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 Jermyn. See also: January | February | March.
