S
M
T
W
T
F
S
29
40°
31°
30
45°
29°
1
47°
25°
2
42°
22°
3
39°
21°
4
36°
25°
5
37°
29°
6
43°
29°
7
44°
32°
8
46°
28°
9
46°
26°
10
43°
23°
11
38°
25°
12
39°
26°
13
42°
25°
14
42°
24°
15
39°
24°
16
38°
25°
17
43°
24°
18
42°
23°
19
38°
24°
20
38°
15°
21
42°
9°
22
39°
11°
23
25°
15°
24
27°
10°
25
27°
13°
26
25°
19°
27
32°
12°
28
33°
9°
29
26°
18°
30
29°
22°
31
36°
21°
1
37°
21°
2
36°
20°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Gardner
Gardner's December 2026 forecast shows daily high temperatures ranging from 25° to 47°, with overnight lows between 9° and 32°. The average high for December is 38° with an average low of 22°. 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 Gardner. See also: January | February | March.