S
M
T
W
T
F
S
29
48°
23°
30
44°
21°
1
36°
20°
2
34°
21°
3
35°
21°
4
40°
24°
5
46°
32°
6
47°
35°
7
49°
29°
8
50°
27°
9
48°
26°
10
36°
25°
11
39°
21°
12
36°
17°
13
33°
20°
14
33°
18°
15
32°
17°
16
31°
16°
17
30°
13°
18
30°
17°
19
29°
11°
20
30°
18°
21
33°
28°
22
37°
28°
23
43°
24°
24
39°
20°
25
35°
11°
26
32°
9°
27
28°
23°
28
35°
14°
29
36°
10°
30
28°
8°
31
27°
14°
1
27°
20°
2
36°
12°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Clarion
Clarion's December 2026 forecast shows daily high temperatures ranging from 27° to 50°, with overnight lows between 8° and 35°. The average high for December is 36° with an average low of 20°. 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 Clarion. See also: January | February | March.
