S
M
T
W
T
F
S
29
32°
23°
30
33°
26°
1
38°
24°
2
37°
25°
3
38°
19°
4
37°
11°
5
34°
16°
6
33°
17°
7
33°
20°
8
32°
23°
9
35°
23°
10
36°
19°
11
37°
15°
12
25°
19°
13
35°
17°
14
Hist. Avg.
29°
14°
15
Hist. Avg.
29°
13°
16
Hist. Avg.
29°
13°
17
Hist. Avg.
28°
13°
18
Hist. Avg.
28°
12°
19
Hist. Avg.
28°
12°
20
Hist. Avg.
27°
12°
21
Hist. Avg.
27°
12°
22
Hist. Avg.
27°
11°
23
Hist. Avg.
27°
11°
24
Hist. Avg.
26°
11°
25
Hist. Avg.
26°
11°
26
Hist. Avg.
26°
10°
27
Hist. Avg.
26°
10°
28
Hist. Avg.
26°
10°
29
Hist. Avg.
25°
10°
30
Hist. Avg.
25°
10°
31
Hist. Avg.
25°
9°
1
Hist. Avg.
25°
9°
2
Hist. Avg.
25°
9°
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 25° to 38°, with overnight lows between 11° and 26°. The average high for December is 34° with an average low of 20°. 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.
