S
M
T
W
T
F
S
29
32°
4°
30
30°
3°
1
31°
10°
2
32°
13°
3
34°
12°
4
32°
7°
5
29°
9°
6
32°
3°
7
29°
3°
8
34°
4°
9
36°
2°
10
37°
8°
11
40°
4°
12
39°
6°
13
40°
12°
14
34°
14°
15
30°
8°
16
36°
1°
17
31°
12°
18
33°
13°
19
36°
15°
20
36°
6°
21
37°
1°
22
30°
10°
23
34°
-1°
24
34°
10°
25
31°
13°
26
36°
0°
27
37°
-5°
28
25°
7°
29
25°
-2°
30
30°
4°
31
26°
8°
1
34°
14°
2
35°
5°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Glen
Glen's December 2026 forecast shows daily high temperatures ranging from 25° to 40°, with overnight lows between -5° and 15°. The average high for December is 33° with an average low of 7°. 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 Glen. See also: January | February | March.
