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