S
M
T
W
T
F
S
29
37°
24°
30
39°
27°
1
41°
26°
2
39°
27°
3
38°
25°
4
37°
25°
5
36°
24°
6
37°
23°
7
36°
22°
8
37°
26°
9
35°
27°
10
38°
25°
11
44°
22°
12
34°
22°
13
43°
32°
14
44°
31°
15
Hist. Avg.
34°
22°
16
Hist. Avg.
34°
22°
17
Hist. Avg.
33°
22°
18
Hist. Avg.
33°
22°
19
Hist. Avg.
33°
21°
20
Hist. Avg.
33°
21°
21
Hist. Avg.
32°
21°
22
Hist. Avg.
32°
21°
23
Hist. Avg.
32°
20°
24
Hist. Avg.
32°
20°
25
Hist. Avg.
32°
20°
26
Hist. Avg.
32°
20°
27
Hist. Avg.
31°
20°
28
Hist. Avg.
31°
19°
29
Hist. Avg.
31°
19°
30
Hist. Avg.
31°
19°
31
Hist. Avg.
31°
19°
1
Hist. Avg.
30°
18°
2
Hist. Avg.
30°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Castleton Township
Castleton Township's December 2026 forecast shows daily high temperatures ranging from 34° to 44°, with overnight lows between 22° and 32°. The average high for December is 38° with an average low of 26°. 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 Castleton Township. See also: January | February | March.
