S
M
T
W
T
F
S
29
45°
27°
30
47°
28°
1
48°
37°
2
48°
39°
3
49°
41°
4
51°
41°
5
49°
40°
6
51°
40°
7
51°
36°
8
46°
32°
9
44°
29°
10
45°
28°
11
60°
34°
12
63°
25°
13
62°
24°
14
42°
25°
15
44°
24°
16
45°
23°
17
42°
29°
18
49°
38°
19
55°
39°
20
59°
38°
21
61°
34°
22
59°
38°
23
58°
39°
24
61°
24°
25
62°
22°
26
45°
22°
27
42°
26°
28
49°
35°
29
53°
36°
30
56°
38°
31
59°
40°
1
59°
34°
2
60°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Jasper
Jasper's December 2026 forecast shows daily high temperatures ranging from 42° to 63°, with overnight lows between 22° and 41°. The average high for December is 52° with an average low of 32°. 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 Jasper. See also: January | February | March.
