S
M
T
W
T
F
S
29
46°
32°
30
47°
32°
1
44°
31°
2
43°
31°
3
44°
30°
4
46°
30°
5
44°
29°
6
37°
27°
7
34°
20°
8
30°
19°
9
33°
23°
10
39°
27°
11
40°
27°
12
42°
26°
13
38°
27°
14
32°
24°
15
37°
22°
16
38°
25°
17
39°
24°
18
36°
20°
19
35°
19°
20
31°
11°
21
31°
15°
22
27°
18°
23
36°
22°
24
34°
19°
25
36°
10°
26
34°
12°
27
27°
9°
28
29°
8°
29
27°
14°
30
27°
17°
31
29°
9°
1
34°
5°
2
24°
6°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Prophetstown
Prophetstown's December 2026 forecast shows daily high temperatures ranging from 24° to 47°, with overnight lows between 5° and 32°. The average high for December is 36° with an average low of 21°. 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 Prophetstown. See also: January | February | March.
