S
M
T
W
T
F
S
29
40°
29°
30
41°
28°
1
41°
28°
2
38°
27°
3
37°
26°
4
37°
25°
5
36°
27°
6
36°
26°
7
37°
25°
8
37°
26°
9
44°
32°
10
43°
36°
11
45°
36°
12
Hist. Avg.
37°
30°
13
Hist. Avg.
37°
30°
14
Hist. Avg.
37°
30°
15
Hist. Avg.
37°
30°
16
Hist. Avg.
37°
30°
17
Hist. Avg.
37°
30°
18
Hist. Avg.
37°
30°
19
Hist. Avg.
37°
30°
20
Hist. Avg.
37°
30°
21
Hist. Avg.
37°
30°
22
Hist. Avg.
36°
29°
23
Hist. Avg.
36°
29°
24
Hist. Avg.
36°
29°
25
Hist. Avg.
36°
29°
26
Hist. Avg.
36°
29°
27
Hist. Avg.
36°
29°
28
Hist. Avg.
36°
29°
29
Hist. Avg.
36°
29°
30
Hist. Avg.
36°
29°
31
Hist. Avg.
36°
29°
1
Hist. Avg.
35°
28°
2
Hist. Avg.
35°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Bad Mergentheim
Bad Mergentheim's December 2026 forecast shows daily high temperatures ranging from 36° to 45°, with overnight lows between 25° and 36°. The average high for December is 39° with an average low of 29°. 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 Bad Mergentheim. See also: January | February | March.
