S
M
T
W
T
F
S
29
40°
21°
30
29°
19°
1
30°
21°
2
41°
22°
3
41°
22°
4
40°
21°
5
36°
20°
6
32°
18°
7
24°
18°
8
39°
20°
9
40°
20°
10
39°
19°
11
40°
19°
12
38°
18°
13
38°
20°
14
34°
15°
15
34°
15°
16
34°
10°
17
33°
9°
18
28°
-2°
19
27°
-1°
20
19°
15°
21
33°
13°
22
33°
8°
23
31°
11°
24
30°
10°
25
32°
14°
26
30°
11°
27
34°
0°
28
30°
-2°
29
19°
-2°
30
19°
-6°
31
17°
-1°
1
17°
11°
2
24°
13°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Gladstone
Gladstone's December 2026 forecast shows daily high temperatures ranging from 17° to 41°, with overnight lows between -6° and 22°. The average high for December is 32° with an average low of 13°. 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 Gladstone. See also: January | February | March.
