S
M
T
W
T
F
S
29
48°
31°
30
46°
30°
1
44°
28°
2
34°
25°
3
39°
29°
4
44°
27°
5
41°
28°
6
35°
21°
7
31°
17°
8
30°
18°
9
34°
22°
10
39°
26°
11
39°
25°
12
43°
26°
13
39°
26°
14
34°
24°
15
39°
22°
16
40°
23°
17
39°
20°
18
34°
17°
19
33°
14°
20
30°
9°
21
27°
18°
22
31°
18°
23
36°
20°
24
34°
16°
25
33°
12°
26
32°
17°
27
29°
14°
28
32°
9°
29
27°
13°
30
27°
16°
31
28°
7°
1
32°
2°
2
23°
5°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Sigourney
Sigourney's December 2026 forecast shows daily high temperatures ranging from 23° to 48°, with overnight lows between 2° and 31°. The average high for December is 35° with an average low of 19°. 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 Sigourney. See also: January | February | March.
