S
M
T
W
T
F
S
29
45°
27°
30
44°
28°
1
44°
32°
2
43°
32°
3
52°
24°
4
53°
21°
5
38°
28°
6
40°
26°
7
45°
29°
8
50°
32°
9
38°
22°
10
48°
37°
11
51°
36°
12
Hist. Avg.
42°
28°
13
Hist. Avg.
42°
28°
14
Hist. Avg.
42°
28°
15
Hist. Avg.
42°
28°
16
Hist. Avg.
41°
27°
17
Hist. Avg.
41°
27°
18
Hist. Avg.
41°
27°
19
Hist. Avg.
40°
27°
20
Hist. Avg.
40°
26°
21
Hist. Avg.
40°
26°
22
Hist. Avg.
40°
26°
23
Hist. Avg.
40°
26°
24
Hist. Avg.
39°
26°
25
Hist. Avg.
39°
25°
26
Hist. Avg.
39°
25°
27
Hist. Avg.
39°
25°
28
Hist. Avg.
39°
25°
29
Hist. Avg.
38°
24°
30
Hist. Avg.
38°
24°
31
Hist. Avg.
38°
24°
1
Hist. Avg.
38°
24°
2
Hist. Avg.
38°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Galena
Galena's December 2026 forecast shows daily high temperatures ranging from 38° to 53°, with overnight lows between 21° and 37°. The average high for December is 45° 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 Galena. See also: January | February | March.
