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