S
M
T
W
T
F
S
29
43°
30°
30
46°
31°
1
38°
31°
2
41°
30°
3
41°
31°
4
42°
31°
5
48°
30°
6
50°
31°
7
48°
29°
8
46°
26°
9
37°
27°
10
37°
27°
11
42°
17°
12
34°
13°
13
32°
15°
14
34°
23°
15
41°
22°
16
40°
26°
17
41°
25°
18
42°
24°
19
43°
26°
20
45°
24°
21
43°
25°
22
43°
22°
23
42°
13°
24
39°
11°
25
29°
16°
26
34°
24°
27
38°
25°
28
39°
24°
29
45°
27°
30
45°
25°
31
44°
22°
1
43°
10°
2
43°
8°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Juniata
Juniata's December 2026 forecast shows daily high temperatures ranging from 29° to 50°, with overnight lows between 8° and 31°. The average high for December is 41° 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 Juniata. See also: January | February | March.