S
M
T
W
T
F
S
29
40°
24°
30
30°
21°
1
33°
25°
2
42°
26°
3
41°
25°
4
41°
24°
5
37°
23°
6
33°
21°
7
25°
22°
8
40°
23°
9
41°
23°
10
40°
22°
11
40°
23°
12
39°
22°
13
39°
23°
14
35°
20°
15
34°
18°
16
35°
13°
17
32°
11°
18
29°
2°
19
28°
5°
20
20°
20°
21
34°
14°
22
34°
12°
23
30°
17°
24
33°
15°
25
34°
19°
26
31°
14°
27
34°
2°
28
30°
2°
29
20°
5°
30
21°
0°
31
20°
6°
1
19°
17°
2
29°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in West Glendive
West Glendive's December 2026 forecast shows daily high temperatures ranging from 19° to 42°, with overnight lows between -0° and 26°. The average high for December is 33° with an average low of 16°. 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 West Glendive. See also: January | February | March.
